Strong's #4684: matshalah (pronounced mats-haw-law')
from 6670; a whinnying (through impatience for battle or lust):--neighing.
Brown-Driver-Briggs Hebrew Lexicon:
matshâlâh
1) neighing
Part of Speech: noun feminine
Relation: from H6670
Usage:
This word is used 2 times:
Jeremiah 8:16: "the whole land trembled at the sound of the neighing of his strong ones; for they are come,"
Jeremiah 13:27: "I have seen thine adulteries, and thy neighings, the lewdness of thy whoredom, and thine abominations on the hills"