LATIN DICTIONARYLexicon Latīnum
adjectivefirst/second-declension adjective

tertiānus

tertiānus (feminine tertiāna, neuter tertiānum)

Meaning

  1. adjectivebelonging to the third

Declension

singular
formmasculinefeminineneuter
nominativetertiānustertiānatertiānum
genitivetertiānītertiānaetertiānī
dativetertiānōtertiānaetertiānō
accusativetertiānumtertiānamtertiānum
ablativetertiānōtertiānātertiānō
vocativetertiānetertiānatertiānum
plural
formmasculinefeminineneuter
nominativetertiānītertiānaetertiāna
genitivetertiānōrumtertiānārumtertiānōrum
dativetertiānīstertiānīstertiānīs
accusativetertiānōstertiānāstertiāna
ablativetertiānīstertiānīstertiānīs
vocativetertiānītertiānaetertiāna

tertĭānus, a, um, adj. id.,
I. of or belonging to the third, tertian.
I. Adj.: tertianae febres, i.e. the tertian fever, Cic. N. D. 3, 10, 24.—
II. Substt.
A. tertĭāna, ae, f. (sc. febris), the tertian fever, Cels. 3, 5; Petr. 17; Plin. 24, 19, 107, § 170: tertianis et quartanis remedium, id. 21, 23, 94, § 166; 22, 25, 72, § 150.—
B. tertĭāni, ōrum, m. (sc. milites), soldiers of the third legion, Tac. A. 13, 38; id. H. 3, 24.

Origins

  1. Proto-Indo-European*tréyes
  2. Proto-Indo-European*tri-
  3. Proto-Indo-European*tritós
  4. Proto-Italic*tritios
  5. Latintertiānus

Proto-Indo-European *-nós Proto-Italic *-nos Proto-Italic *-ānos Latin -ānus Latin tertiānus From tertius (“third”) + -ānus (“pertaining to”).

Descendants
  • Catalanterçanafrom Latin (febris) tertiānā
  • Englishtertianfrom Latin (febris) tertiānā

Quick answers

What does tertiānus mean in Latin?
tertiānus, a adjective, means “belonging to the third”.
Where does tertiānus come from?
Proto-Indo-European *tréyes → Proto-Indo-European *tri- → Proto-Indo-European *tritós → Proto-Italic *tritios → Latin tertiānus.