Strong's #1216: batseq (pronounced baw-tsake')
a primitive root; perhaps to swell up, i.e. blister:--swell.
Brown-Driver-Briggs Hebrew Lexicon:
ּ
bâtsêq
1) (Qal) to swell, become blistered
Part of Speech: verb
Relation: a primitive root
Usage:
This word is used 2 times:
Deuteronomy 8:4: "waxed not old upon thee, neither did thy foot swell, these forty"
Nehemiah 9:21: "their clothes waxed not old, and their feet swelled not."