Strong's Definition
from 332; shut up, i.e. impeded (as to the use of the right hand)
KJV Usage: + left-handed
STEPBible — Tyndale Abridged Hebrew Lexicon
אִטֵּר (it.ter) — lefthanded. bound, impeded (on the right, ie, left-handed), shut, shut up
UBS Dictionary of Biblical Hebrew
UBS Dictionary of Biblical Hebrew © United Bible Societies, licensed CC BY-SA 4.0.
Brown-Driver-Briggs Hebrew Lexicon
אִטֵּר adj. shut up, bound base