Once again on Iranian *kund

The current paper is the third treatment by the author (previous ones: Rossi 2002, 2006) of a complex set of terms widely attested in the Iranian area, but also present in Armenian, NW Semitic (and from here Arabic), Indo-Aryan and Dravidian.
Differently from the conclusions of Asatrian/Arakelova paper of 2001, the author identifies three major lexical families, with the following prototypes: (1) *kōnd-/kŏnd- ‘stump, stub’; (2) *kund-/gund- ‘globular, spherical; thick, large, full-bodied’; (3) *kōnd-/kŏnd- (a) ‘stem of a tree, stump, stock’; and secondarily ‘stock of gun, stocks for offenders’; (b) any anatomical articulation conceived as a support (metaphorical projection on human anatomy of a support stick), as ‘kneecap, elbow, knee’.
All of the linguistic families mentioned show interactions between them for all of the three lexical families, and while core semantics are clearly demonstrable for each of them, peripheral (both geographical and semantical) differentiations are widely attested.
Areal atymologies encompassing Indo-Aryan, Iranian and Dravidian are also hinted.