Under a question. In [AHw. 72] it is interpreted as 'Kalb' with a question mark
Cf. discussion in Kogan 2012a:233.
Late form armû, fem. arw/bītu, armītu
probably an early WS loanword (Kogan2008b:105 and 110, with references)
Var. bašKiKītu, ašKiKītu, mašKiKītu.
No etymology can be suggested. The spelling alternation b-/m-/Ø- may suggest *w in the prototype.