Arabic

naˁāmat- - brain (of the horse); membrane that surrounds the brain (BK 2 1299)

Dissimilation < *maˁām(-at)- < *maˁmaˁ(-at)-? (can n- < *m- be influenced by contamination with nuḫḫ-, naḫāḫat- ‘bone marrow’ [ibid. 1219]?). Phonetically quiestionable.

PWS

*maˁmaˁ- - brain (SED I No. 184; Kogan 2005d; Kogan 2011: 220)

Not quite reliable. Scarce attestation only in Ugr., Arb. (phonetically questionable) and MSA. Cf. *muḫḫ- - brain, marrow No. 187.