Etymograph
>
Indo-European
>
Old English
>
Dictionary
>
dr
ēo
pan
drip
Source:
Kroonen 2013
:102
originates from: PGmc
*dreupan-
"droop; to drip" (
oe-diphthong-tensing
) through pgmc-to-oe
(source:
Kroonen 2013
:102)