English word hygropetric comes from English -petric, English hygro- (Humidity. Moisture.)

Detailed word origin of hygropetric

Dictionary entry	Language	Definition
-petric	English (eng)
hygro-	English (eng)	Humidity. Moisture.
hygropetric	English (eng)	(zoology) Requiring a habitat of a thin layer of water covering a rock surface.

Words with the same origin as hygropetric