PArm

*ḥad- - one (Kogan 2015: 399–400)

Outside Aramaic, aphaeresis of ˀa- in PS *ˀaḥad- ‘one’ is regular in some varieties of modern EthS (v. EDG 322 under Sel. Zwy. had).

*ˀaḥad- - one (CDG 12, Kogan 2015: 34)

Level?

Samalian

ḥd - one (DNWSI 32)

f. ḥdh

Deir Alla

ḥd - one (DNWSI 32)

Old Aramaic

ḥd - one (DNWSI 32)

Jewish Palestinian Aramaic

ḥad - one, someone, certain (DJPA 187)

Jewish Babylonian Aramaic

ḥaḏ - one (DJBA 430)

Syriac

ḥad - one (LSyr. 215, SL 413)

Mandaic

had - one, single (MD 116)

Turoyo

ḥa - eins, einer (one) (JL 20)