Where does “subtil” come from?

subtil (Old French) comes from Latin subtīlis, from Latin tēla, from Old Dutch tegela, from Proto-Germanic *tigulā, from Proto-Germanic tigulǭ, from Latin tēgula, from Latin tegō, from Proto-Italic tegō — to cover; pole, stick, beam.

Ancestry of “subtil”, step by step

StepLanguageWordMeaning
1Latinsubtīlisfine, thin, slender
2Latintēlaweb
3Old Dutchtegela
4Proto-Germanic*tigulā
5Proto-Germanictigulǭtile; brick
6Latintēgulaa large, flat and heavy roof tile used in an overlapping formation with the curved and smaller imbrex
7Latintegōto cover; to clothe
8Proto-Italictegōcover
9Proto-Indo-European(s)teg-to cover; pole, stick, beam

Words derived from “subtil

Every word from Proto-Indo-European (s)teg-Every word from Proto-Italic tegōEvery word from Latin tegō
subtil — Etymology, Origin & Word History | Etymology Explorer