Etymograph

English

extremophile

From extreme + -o- + -phile.

Formed from extreme + -o- + -phile

Proto-Italic *eksterisemos

Latin extrēmus ‘farthest’

Old French extreme

English extreme

Today it means

noun Any of many organisms that live under extreme conditions of temperature, pressure, salinity, etc; many are autotrophs; some are commercially important as a source of enzymes that operate under similar conditions.

Language periods are conventional ranges, not dates for this word.

Etymograph / extremophile