PS

*g(ʷ)ann- - breastbone; side of body (SED I No. 101)

Arabic
ǯanǯan(-at)-, ǯinǯin- - chest bones, sternum, breastbone (BK 1 337)
Tigre
gənne - breast-piece, shoulder-piece (meat of the especially good pieces) (WTS 587)
Also ‘piece of fat meat between the forelegs of the cow (much liked); breast-callus of the cameľ [ibid. 588]
Amharic
gʷänn - flank, side (of the body from armpit to hip) (AED 2001)
Selti
gon - side of body, place, side (EDG 280)
Gafat
gʷanä - scarp,vertebrate (LGaf. 203)
Gogot
gʷän - side of body, place, side (EDG 280)
Soddo
gʷän - side of body, place, side (EDG 280)