PCS

*bizz- - teat, breast (SED I No. 44; Kogan 2011: 217)

Ugaritic
bz - breast (DLU 123)
Official Aramaic
bz - breast (DNWSI 149)
Uncertain.
Jewish Palestinian Aramaic
bz - breast (DJPA 89)
det. byzh
Jewish Babylonian Aramaic
bizzā, biztā - pap, breast (DJBA 159)
Syriac
bezzā - breast, teat (LSyr. 64, SL 132)
Syriac
bezzonā - small teat (LSyr. 64, SL 133)
Arabic
bizz-, buzz- - nipple (Dozy I 80)
See Arb. dial. bizz ‘sein, mamelle’ “udder” [ibid. 120] marked as Afr. meaning an unspecied Arabic dialect spoken in Africa.
Amharic
bəz - internal tumor; kind of chancre which appears on the backs of pack animals due to chafing of the loads (AED 929)
May be related with a meaning shift.