numeralfirst/second-declension numeral with a first/second-declension numeral
tertiusdecimus
tertiusdecimus (feminine tertiadecima, neuter tertiumdecimum)
Classical[tɛr.ti.ʊsˈdɛ.kɪ.mʊs]Ecclesiastical[ter.t͡si.uzˈdɛː.t͡ʃi.mus]
Meaning
- numeralthirteenth
Declension
| form | masculine | feminine | neuter |
|---|---|---|---|
| nominative | tertiusdecimus | tertiadecima | tertiumdecimum |
| genitive | tertiīdecimī | tertiaedecimae | tertiīdecimī |
| dative | tertiōdecimō | tertiaedecimae | tertiōdecimō |
| accusative | tertiumdecimum | tertiamdecimam | tertiumdecimum |
| ablative | tertiōdecimō | tertiādecimā | tertiōdecimō |
| vocative | tertiedecime | tertiadecima | tertiumdecimum |
| form | masculine | feminine | neuter |
|---|---|---|---|
| nominative | tertiīdecimī | tertiaedecimae | tertiadecima |
| genitive | tertiōrumdecimōrum | tertiārumdecimārum | tertiōrumdecimōrum |
| dative | tertiīsdecimīs | tertiīsdecimīs | tertiīsdecimīs |
| accusative | tertiōsdecimōs | tertiāsdecimās | tertiadecima |
| ablative | tertiīsdecimīs | tertiīsdecimīs | tertiīsdecimīs |
| vocative | tertiīdecimī | tertiaedecimae | tertiadecima |
tertĭus-dĕcĭmus (-dĕcŭmus), a, um,
I. num. ord. adj., the thirteenth:
dies, Cels. 3, 4 med.: mense, Col. 6, 36, 2; Plin. 8, 44, 69, § 171: tertiadecuma legio, Tac. A. 1, 37.Origins
From trēdecim (“thirteen”), using the ordinal forms tertius (“third”) and decimus (“tenth”) of its constituent parts trēs (“three”) and decem (“ten”).