Learn how to say Whinnied correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word whinny:
Definition of whinny
noun (plural whinnies)
a gentle, high-pitched neigh.
verb (whinnies, whinnying, whinnied)
(of a horse) make a whinny:
the pony whinnied and tossed his head happily
late Middle English (as a verb): imitative. The noun dates from the early 19th century