PS

*rbṣ̂ - to lie down, to rest (mostly of animals) (HALOT 1181, Kogan 2015: 342)

Areal reconstruction
*tarbāṣ- - enclosure, yard (HALOT 1181; Kogan 2015:342)

Akkadian
rabāṣu - to lie down; to be at peace; to lurk (CAD R 10; AHw. 993)
Ugaritic
rbṣ - to rest, lie down (DUL 720)
Hebrew
rbṣ - to lie down, rest (of animals) (mostly of animals); to lurk (HALOT 1181; BDB 918)
Biblical Aramaic
rbˁ - to lie in position, to recline; to copulate (HALOT 1180)
Jewish Palestinian Aramaic
rbˁ - to lie down, collapse (DJPA 514)
Jewish Babylonian Aramaic
rbˁ - to lie down (DJBA 1058)
Arabic
rbḍ - to lie down (animals) (Lane 1011)
Sabaic
mrbṣ̂ - grazing-round (SD 114)
Mehri
rəbūẑ - to lie down, to couch (animals) (ML 314)
Jibbali
rɔ̄ẓ̂ - to couch, to lie down (animals)
Harsusi
rebōẑ - to lie down (animals) (HL 102)