Piebald means marked in patches of black and white. A piebald horse.
Black and white is piebald and any other colour with white is skewbald. The pie in it is the magpie, which is exactly the colouring meant.
1adjectivepiebaldMarked in patches of black and white.
“The piebald pony was recognised in three counties.”
piebald is a marking.
Pie, a magpie, plus bald in the old sense of having a white patch.
Proto-Indo-European
*(s)peyk-
English, today
piebald
Built from
From pie (“magpie”) + bald (“having white patches or blazes”). Compare typologically srokaty < sroka.
Etymology from Wiktionary, CC BY-SA