Ugaritic

ˁrb - to enter (DUL 179‒180)

Ugaritic is the only WS language where *ˁrb fully preserves its (presumably, original) status of the main exponent of the meaning “to enter.” (Kogan 2015: 333)

PS
*ˁrb/*γrb - to come in, to enter (Kogan 2015: 333;409)

The original meaning ‘to enter’ only in Akk. and Ugr. Elsewhere in WS, only derived meanings (such as ‘to set (sun)’ or ‘to stand surety’) are attested (HALOT 876, CDG 69). For MSA ‘strange, peculiar’ cf. also Tgr. ˁarba ‘something peculiar’ (WTS 460).