Where does “спонта́нный” come from?

спонта́нный (Russian) comes from German spontan, from Latin spontāneus, from Latin -āneus, from Latin -eus, from Proto-Italic *-eos — Forms adjectives indicating being formed out of a material.

спонта́нный (Russian): spontaneous

Definitions

  1. spontaneous

Ancestry of “спонта́нный”, step by step

StepLanguageWordMeaning
1Germanspontanspontaneous
2Latinspontāneusvoluntary, spontaneous
3Latin-āneusforming adjectives Of or pertaining to; -aneous
4Latin-eusargentum + API → argenteus; ferrum + API →...
5Proto-Italic*-eosForms adjectives indicating being formed out of a material

Words derived from “спонта́нный

Every word from Proto-Italic *-eosEvery word from Latin -eusEvery word from Latin -āneus