English

hydrauger

Blend of hydraulic + auger.

Ancient Greek ὕδραυλις ‘water organ’

Ancient Greek ὑδραυλικός ‘of a water organ’

Latin hydraulicus

French hydraulique

Proto-Germanic *nabōgaizaz

Proto-West Germanic *nabugaiʀ

Old English nafugār ‘nave drill’

Middle English a nauger

English auger

Today it means

noun A horizontal boring machine used to install pipelines etc. under roadways

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

Etymograph / hydrauger