Etymograph

English

aeroderivative

From aero- + derivative.

Formed from aero- + derivative

Proto-Indo-European *h₂ews- ‘dawn’

Proto-Indo-European *h₂ewsér ‘in the direction of dawn, east’

Proto-Hellenic *auhḗr ‘morning mist’

Ancient Greek ἀήρ ‘air’

Ancient Greek ἀέρος

English aero-

Proto-Indo-European *h₃reyH- ‘to move, set in motion’

…

Latin rīvō ‘to lead or draw off’

Latin dērīvō ‘to derive’

Latin dērīvātus ‘drawn off, diverted, derived’

Middle French dérivatif

English derivative

Today it means

noun A relatively small and light gas turbine based on those used in aircraft.

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

Etymograph / aeroderivative