Where does “vetrānus” come from?

vetrānus (Latin) comes from Latin veterānus, from Latin vetus, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

Ancestry of “vetrānus”, step by step

StepLanguageWordMeaning
1Latinveterānusold, veteran
2Latinvetusold, aged, elderly, ancient; long-standing;...
3Latin-tusForms the past participle of verbs; Forms...
4Proto-Italic-tus—
5Proto-Indo-European-tusDerives action nouns from verb roots
Every word from Proto-Indo-European -tus →Every word from Latin -tus →Every word from Latin vetus →