PS

*ˀarḫ- - cow, heifer (SED II No. 12, Fron. VI 30, DRS 32)

Akkadian
arḫu - cow (CAD A₂ 263, AHw. 67)
Ugaritic
ˀarḫ - cow, heifer (DUL 102)

one of the most ancient and widespread animal names in Semitic (SED II No.12), borrowing from Akk. arḫu ‘cow’ must be emphatically excluded (contra Watson 2007: 78).

Ammonite
ˀrḥ - young cow (HJ 107)
Official Aramaic
ˀrḫ - cow (HJ 1253)

From Papyrus Amherst 63.

Arabic
ˀirḫ- - jeune taureau (BK 1 23, LA III 4)
Arabic
ˀirāḫ- - antilope (Fr. I 25, TA 7 226)

Possibly related.

Arabic
ˀirḫat- - génisse (BK 1 24, LA III 4)

Cf. also ˀarḫ-, ˀurḫiyy- id. (Fr. I 25, LA III 4).

Tigrinya
ˀarḥa - bull, ram (K Tna. 1437)

Cf. also ˁarḥa id. (ibid. 1842).

Tigrinya
ˀarḥi - heifer, goat, cow, sheep or hen which has not yet produced offspring (K Tna. 1437)
Soqotri
arḥ - grown-up heifer (LS 74, CSOL II)

du. árḥi, pl. éraḥ