Where does “posttertiary” come from?

posttertiary (English) comes from English Tertiary, from Latin tertiārius, from Latin tertius, from Latin trēs, from Proto-Italic trēs, from Proto-Indo-European *tréyes.

posttertiary (English): Following, or more recent than, the Tertiary

Definitions

  1. Following, or more recent than, the Tertiary

Ancestry of “posttertiary”, step by step

StepLanguageWordMeaning
1EnglishTertiaryOf or pertaining to the first part of the...
2Latintertiāriuscontaining a third part
3Latintertiusthird, the ordinal number after secundus and...
4Latintrēsthree; 3
5Proto-Italictrēsthree
6Proto-Indo-European*tréyes—
Every word from Proto-Indo-European *tréyes →