English

gnathobase

From gnatho- + base.

A compound of gnatho- + base

Ancient Greek γνάθος ‘jaw’

Proto-Indo-European *gʷem- ‘to come’

…

Ancient Greek βᾰ́σῐς ‘stepping’

Latin basis ‘a pedestal’

Old French base

Middle English base ‘a foundation or base’

English base

Today it means

noun A lower appendage of many arthropods, used to macerate food items.

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

Etymograph / gnathobase