Webster's Revised Unabridged Dictionary · 1913

Piebald

Piebald , adjective

[Pie the party-colored bird + bald.]

1.
Having spots and patches of black and white, or other colors; mottled; pied.
A piebald steed of Thracian strain. — Dryden
2.
Figuratively: Mixed.
Piebald languages. — Hudibras