Where does “untactile” come from?

untactile (English) comes from English tactile, from Middle French tactile, from Latin tactilis, from Latin tāctus, from Latin -tus, from Proto-Italic -tus, from Proto-Indo-European -tus — Derives action nouns from verb roots.

untactile (English): Not tactile

Definitions

  1. Not tactile

Ancestry of “untactile”, step by step

untactile traces back through two separate lines of ancestry.

via English tactile

StepLanguageWordMeaning
1EnglishtactileTangible; perceptible to the sense of touch; Used...
2Middle Frenchtactile
3Latintactilistangible
4Latintāctustouched, having been touched, grasped, having been grasped
5Latin-tusForms the past participle of verbs; Forms...
6Proto-Italic-tus
7Proto-Indo-European-tusDerives action nouns from verb roots

via English un

StepLanguageWordMeaning
1EnglishunOne
Every word from Proto-Indo-European -tusEvery word from Latin -tusEvery word from Latin tāctus