Words

Arabic
nˁm - to become plentiful and easy; to be good, pleasant (Lane 3035)
Arabic
naˁāmat- - ostrich (BK 2 1298, Lane 3035)
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. 

Arabic
nuˁnuˁat- - craw of a bird (LA 8 426)
may be related
Arabic
nˁr - to utter a noise (Lane 2815)
Arabic
nuˁarat- - foetus in the womb of female wild ass (LA 5 260)
Arabic
-nā - our; us (genitive and accusative pronominal suffix, 1 pl.) (Fischer 2002 § 268)
Arabic
nafiyy- - kind of sieve made of palm leaves (TA 40 119)
perhaps related
Arabic
nūb- - bee (BK 2 1362, Lane 2863)
Arabic
nāb- - canine teeth (BK 2 1375, Lane 2870)