English

hardpad

From hard + pad, since it causes hardening of the animal's footpads.

A compound of hard + pad

Proto-Germanic *harduz

Proto-West Germanic *hard(ī)

Old English heard ‘hard’

Middle English hard

English hard

West Flemish pad ‘sole of the foot’

English pad

Today it means

noun canine distemper

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