Where does “reptile” come from?

reptile (Old French) comes from Late Latin reptile, from Latin reptilis, from Latin rēpō, from Proto-Italic rēpō, from Proto-Indo-European h₁reh₁p- — to creep.

Ancestry of “reptile”, step by step

reptile traces back through two separate lines of ancestry.

via Late Latin reptile

StepLanguageWordMeaning
1Late Latinreptileneuter nominative singular of rēptilis; neuter...
2Latinreptiliscreeping, crawling
3Latinrēpōto creep, crawl
4Proto-Italicrēpō—
5Proto-Indo-Europeanh₁reh₁p-to creep

via Latin rēptile

StepLanguageWordMeaning
1Latinrēptilea reptile

Words derived from “reptile”

Every word from Proto-Indo-European h₁reh₁p- →Every word from Proto-Italic rēpō →Every word from Latin rēpō →