Comments: PAT *na-ṗǝ 'hand' (for -ṗǝ see PWC *ṗA) is obviously a dissimilation from *ma-ṗǝ. The root *ma is clearly seen in compounds like *ma-cʷA 'finger' (Abkh. a-ma-čá, Abaz. ma-čʷǝ), Abkh. a-ma-χʷár 'arm' etc.
Outside AT the same root (with the general meaning "extremity") can be probably discovered within the common WC designation of "knee": AT *mǝ-qA (Abkh. a-š́a-mχǝ́, Bz. a-š́a-mχǝ́, Abaz. š́a-mqa); Ub. ʎa-mā-ša (where the first part is the PWC root for 'foot, leg' q.v. and the last part is the PWC root for 'head': the whole compound can thus be interpreted as "head of leg's extremity"). In AK this root has survived only within the compound *ʎa-gʷa(n)ža-mǝ-śħa 'kneeling' (*ʎa-gʷa(n)ža is the PAK word for 'knee'). Thus Abdokov's (1983, 79) comparison of PAT *mǝ-qA with an isolated Akhvakh form (Akhv. muq̇u 'knee') should be rejected.