PS

*ḏky - to be pure

Akkadian
zakû - to become clean, clear (CAD Z 25, AHw. 1506)
Ebla
du-uš-gú-dè /tuḏkūtī/ - my purification (ARET XIII 1 obv. VIII 4, Kogan–Krebernik 2021b: 696)
Phoenician
zky - pure (DNWSI 321)
Hebrew
zky - to be pure (HALOT 269)
Official Aramaic
zky - to be pure (DNWSI 320)
Palmyrean
zky - ritually pure (DNWSI 321)
Hatran
zky - ritually pure (DNWSI 321)
Jewish Palestinian Aramaic
dky - (pa.) to purify (DJPA 149)
Christian Palestinian Aramaic
dky - (pa.) to purify (DCPA 45)
Jewish Babylonian Aramaic
dky - to be ritually clean (DJBA 337)
Syriac
dky - to be pure (LSyr. 152)
Mandaic
dka - to be pure (MD 109)