Ordinal numbers in Latin are crucial for expressing rank, sequence, and position. Unlike cardinal numbers that denote quantity, ordinals focus on order within a set. They're formed by adding suffixes to cardinal stems, with some irregular forms requiring memorization.
Ordinals function as adjectives, agreeing with nouns in gender, number, and case. They're essential in dates, literature, and inscriptions. Understanding their formation, declension, and usage is key to mastering Latin expression and comprehending ancient texts.
Definition of ordinal numbers
- Ordinal numbers in Latin indicate position or order in a sequence
- Serve a crucial role in Elementary Latin by enabling precise expression of rank, sequence, and position
- Differ from cardinal numbers which express quantity, ordinals focus on order within a set
- Ordinal numbers follow specific patterns based on their cardinal counterparts
- Generally formed by adding suffixes to the stem of cardinal numbers
- Irregular forms exist for certain numbers, requiring memorization
First through tenth
- Primus (first) derived from irregular base, not related to unus (one)
- Secundus (second) also irregular, stems from sequi (to follow)
- Tertius through decimus follow more regular patterns
- Quartus (fourth) drops final -uor from quattuor (four)
- Nonus (ninth) shortens novem (nine)
Eleventh through twentieth
- Undecimus (eleventh) combines un- (from unus) with decimus (tenth)
- Duodecimus through undevicesimus follow similar compound structure
- Vicesimus (twentieth) introduces new stem vic- for multiples of ten
- Ordinals 13-19 can use either -decimus or -esimus suffix (tertius decimus or tredecimus)
Twenty-first and beyond
- Combine tens ordinal with units ordinal (vicesimus primus for twenty-first)
- Ordinals for tens use -esimus suffix (tricesimus, quadragesimus)
- Centesimus (hundredth) and millesimus (thousandth) important for larger numbers
- Complex ordinals like ducentesimus octogensimus quintus (285th) follow logical combination rules
Declension of ordinal numbers
- Ordinal numbers function grammatically as adjectives in Latin
- Decline to agree with the noun they modify in gender, number, and case
- Understanding declension patterns essential for correct usage in sentences
First and second declension
- Primus, -a, -um follows first/second declension adjective pattern
- Masculine and neuter forms decline like second declension nouns
- Feminine forms decline like first declension nouns
- Secundus through decimus also follow this declension pattern
Third declension
- Ordinals from tertius onward belong to third declension
- Follow pattern of third declension adjectives with -i stem
- Nominative singular forms end in -ius for masculine, -ia for feminine, -ium for neuter
- Genitive singular ends in -ii for all genders
Usage in Latin sentences
- Ordinal numbers play vital role in expressing order and sequence
- Must agree with the noun they modify in gender, number, and case
- Understanding their usage enhances comprehension of Latin texts
As adjectives
- Modify nouns to indicate position or order (liber tertius - the third book)
- Can be used attributively or predicatively in sentences
- May precede or follow the noun they modify, affecting emphasis
- Often used with temporal expressions (tertio die - on the third day)
In dates
- Romans used a complex system of dates based on Kalends, Nones, and Ides
- Ordinals indicate how many days before these fixed points (ante diem tertium Kalendas Apriles)
- Anno Domini dates in Medieval Latin use ordinals for years (anno millesimo nongentesimo nonagesimo nono)
- Days of the month expressed with ordinals (dies vicesimus quintus mensis Martii)
Comparison with cardinal numbers
- Both ordinal and cardinal numbers essential for quantitative expression in Latin
- Understanding their distinct functions crucial for accurate translation and composition
Similarities and differences
- Both decline as adjectives, agreeing with nouns they modify
- Cardinals express quantity (tres libri - three books)
- Ordinals express position or order (tertius liber - the third book)
- Some overlap in form for first (unus/primus) and second (duo/secundus)
- Higher numbers have distinct forms for cardinals and ordinals
When to use each
- Use cardinals for counting or expressing quantity (quinque milites - five soldiers)
- Employ ordinals for ranking or sequencing (quintus miles - the fifth soldier)
- Dates typically use ordinals (pridie Kalendas Maias - the day before the Kalends of May)
- Ages often use cardinals (puer decem annorum - a boy of ten years)
Ordinal numbers in Roman numerals
- Roman numeral system integral to understanding Latin inscriptions and texts
- Ordinals in Roman numerals follow specific conventions distinct from cardinals
Notation system
- Ordinals typically indicated by adding small raised letters to numerals
- Common suffixes include -us, -a, -um depending on gender
- M with raised o used for millesimus (thousandth)
- C with raised o for centesimus (hundredth)
Common examples
- Io or Ius for primus (first)
- IIo or IIus for secundus (second)
- IIIo or IIIus for tertius (third)
- Vo or Vus for quintus (fifth)
- Xo or Xus for decimus (tenth)
- Certain ordinal numbers in Latin have unique forms or usages
- Understanding these exceptions important for accurate translation and composition
Irregular ordinals
- Primus (first) and secundus (second) not derived from their cardinal counterparts
- Nonus (ninth) shortens novem rather than adding typical suffix
- Vicesimus (twentieth) introduces new stem vic- used in subsequent tens
Compound ordinals
- Numbers 18, 19, 28, 29, etc. can use subtractive forms
- Duodevicesimus (18th) literally means "two from twentieth"
- Undevicesimus (19th) means "one from twentieth"
- These forms parallel cardinal number formation (duodeviginti, undeviginti)
Ordinals in Latin literature
- Ordinal numbers frequently appear in various genres of Latin literature
- Their usage often carries significance beyond mere numerical order
Historical texts
- Frequent use in recording chronology of events (anno urbis conditae septingentesimo quinquagesimo tertio)
- Ordinals mark succession of rulers (Tiberius secundus imperator Romanus)
- Used in describing battle formations (prima acies, secunda acies)
- Found in census records and official chronologies
Poetry and prose
- Poets use ordinals for metrical reasons or stylistic effect
- Ovid's "Metamorphoses" divided into 15 books, each referred to by ordinal
- Cicero's orations against Catiline known as "In Catilinam Prima, Secunda, Tertia, Quarta"
- Ordinals in prose often indicate sequence of arguments or points in rhetoric
Translation of ordinal numbers
- Accurate translation of ordinals crucial for preserving meaning and nuance
- Requires understanding of both Latin and target language conventions
Latin to English
- Most Latin ordinals have direct English equivalents (tertius - third)
- Pay attention to context for proper rendering of dates
- Consider stylistic choices when translating literary works
- Be aware of idiomatic expressions using ordinals (in primis - especially)
English to Latin
- Choose appropriate ordinal based on gender, number, and case of modified noun
- Use correct declension pattern for the ordinal
- Consider whether cardinal might be more appropriate in certain contexts
- Be mindful of special forms like duodevicesimus for compound numbers
Common phrases with ordinals
- Many fixed expressions in Latin incorporate ordinal numbers
- These phrases often carry idiomatic meanings beyond literal translation
Time expressions
- Tertia hora - at the third hour (around 9 AM in Roman time)
- Quinto quoque anno - every fifth year
- Ante diem tertium Kalendas - three days before the Kalends
- Prima luce - at first light (dawn)
Ranking and order
- In primis - especially, among the first
- Secundum naturam - according to nature
- Tertium non datur - no third (option) is given (law of excluded middle)
- Ad secundas menses - for the second course (of a meal)
Ordinals in Latin inscriptions
- Latin inscriptions frequently employ ordinal numbers
- Understanding their use in epigraphy aids interpretation of archaeological evidence
Monuments and dedications
- Ordinals mark succession of emperors or officials on dedicatory inscriptions
- Used in recording years of reign or office (tribunicia potestate tertium)
- Found in military honors listing battles or campaigns (tertium triumphans)
- Appear in foundation inscriptions marking order of construction phases
Official documents
- Consular dating system uses ordinals to indicate terms of office
- Laws and decrees often numbered with ordinals (Edictum Secundum)
- Ordinals mark sections or clauses in legal texts
- Found in boundary markers indicating order of survey points