Where does “spontaneity” come from?

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

spontaneity (English): The quality of being spontaneous; Spontaneous...

Definitions

  1. The quality of being spontaneous; Spontaneous...

Ancestry of “spontaneity”, step by step

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

Words derived from “spontaneity

Every word from Proto-Italic *-eosEvery word from Latin -eusEvery word from Latin -āneus
spontaneity — Etymology, Origin & Word History | Etymology Explorer