The story
- Proto-Indo-European · derived from*dʰrewb-“to drip, drop”
- Proto-Germanic · derived from*drūpaną
- Old Norse · derived fromdrúpa“to droop”
- Middle English · inherited fromdroupen
- English todaydroop
Inherited from Middle English droupen, from Old Norse drúpa (“to droop”), from Proto-Germanic *drūpaną, *drupōną (“to hang down, drip, drop”), from Proto-Indo-European *dʰrewb- (“to drip, drop”). Doublet of drip and drop.
Etymology from Wiktionary, CC BY-SA 4.0.