Reconstructions

PC
*ypḳ/*pwḳ - to obtain, to acquire, (causative) to provide (Greenfield 1969: 99, Kogan 2015: 302)
Usually compared to Common Aramaic *npḳ ‘to go out’ and related terms elsewhere in Semitic. Semantically more suitable can be, however, Arb. wfq ‘to be right, agreeable with what was wished,’ (II) ‘to accommodate, to adapt, to dispose’, which would imply an original basic meaning “to fit,” “to be suitable,” “to be available.” (Kogan 2015: 302)
PC
*yāriy- - early rain (Kogan 2015: 315)
The origin of PC *yāriy- is uncertain, but it is tempting to surmise (with DRS 621‒622) a connection with the widely attested verbal root *rwy ‘to be saturated with water’ (for which v. HALOT 1194‒1195 and CDG 478).
PC
*yrˀ - to be afraid (Kogan 2015: 315)
No immediate etymological parallel. Hypothetical cognates (DRS 483, 615‒616) involve either metathesis (Arb. wˀr ‘to frighten’) or consonantal variation (wrˁ ‘to fear’).
PC
*yṣḳ - to pour; to cast (Kogan 2015: 315)
PC
*yṯn - to wear out, grow old (Ginsberg 1970:103, Kogan 2015: 316)
Origin uncertain. Comparison with Arb. ˀsn ‘to be altered, long standing, rancid (water)’ and snn (IV) ‘to be advanced in age’ suggested in Tropper 2000:109, albeit semantically attractive, is undermined by the irregular phonological correspondence. DRS 658 compares Arb. ṯnn (IV) ‘to become wasted and worn out (an old man),’ ṯinn- ‘dry herbage’. Cf. also Arb. wṯn (X) ‘to become numerous, abundant’ (Kogan 2015: 316)
PC
*yayn- - wine (Kogan 2015: 313)
PArm
*ˀḥrn (*ˀuḥrān-) - other (Kogan 2015:388)
PArm
*ˀīlān- - tree (Kogan 2005: 559–560; Kogan 2012: 240)
PArm
*ˀlp - to teach, to instruct (Kogan 2015:412)
see Sam. ˀlb and Arb. ˀlf
PArm
*ˀVnāš- - man (Kogan 2015:392)
Application of PCS (or PWS) *ˀVnāš- to one single individual (“person,” “(some)one”) – to some extent combined with the generic sense “mankind” and the collective meaning “people” – is a highly peculiar Aramaic feature with no obvious precedents elsewhere in Semitic. However, see Tgr. ˀənas ‘man’, Sab. Min. Qat. ˀns₁ (SD 6, LM 6, LIQ 13).