conc▪ QṬː (QṬṬ)_1 : According to Ehret1995#431, qaṭṭa ‘to cut, carve, trim, nib, sharpen’ is an unextended form based on a bi-consonantal »pre-Proto-Semitic« (pPS, i.e. preSem) root *ḲṬ- ‘to cut’, which in turn is from AfrAs *k'âť‑ ‘to cut’.
▪ QṬː (QṬṬ)_2 : qaṭṭᵘ ‘(n)ever’ seems to be akin to QṬː (QṬṬ)_1 ‘to cut, carve, trim, nib, sharpen’. For details ↗s.v..
▪ QṬː (QṬṬ)_3 : qiṭṭ ‘cat’ is probably from the same source as Engl cat and its many cognates in European and other langs.
▪ QṬː (QṬṬ)_4 ‘…’ ↗…