Webster's Revised Unabridged Dictionary · 1913

Whinny

Whinny , intransitive verb

[From Whine]

To utter the ordinary call or cry of a horse; to neigh.

Whinny ({not transcribed}) , noun

The ordinary cry or call of a horse; a neigh.
The stately horse... stooped with a low whinny. — Tennyson

Whinny , adjective

Abounding in whin, gorse, or furze.
A fine, large, whinny,... unimproved common. — Sterne