neigh

Etymology

From Middle English neighen, from Old English hnǣġan, from Proto-Germanic *hnajjōną (“to neigh”). Cognate with dialectal Dutch neien, Middle Low German neigen, Swedish gnägga, Icelandic hneggja.

noun

1. The cry of a horse.

verb

1. (of a horse) To make its cry.
   I went into the stable first to see to the horse, and found him neighing and waiting for his hay, so I went up into the hay-loft for an armful[.] 1886, Peter Christen Asbjørnsen, translated by H.L. Brækstad, Folk and Fairy Tales, page 33
2. To make a sound similar to a horse's cry.
3. (obsolete) To scoff or sneer.