Strong's #4275: mechetsah (pronounced mekh-ets-aw')
from 2673; a halving:--half.
Brown-Driver-Briggs Hebrew Lexicon:
mechĕtsâh
1) half
1a) of spoils
Part of Speech: noun feminine
Relation: from H2673
Usage:
This word is used 2 times:
Numbers 31:36: " And the half, which was the portion of them that went out to war, was in number three hundred"
Numbers 31:43: " (Now the half that pertained unto the congregation was three hundred thousand and thirty thousand"