The primitive consonant [n] survived into Classical Adûnaic before vowels but changed before most consonants. The only primitive combinations with initial ✶[n] to survive were ✶[nn], ✶[nw], ✶[nd], ✶[nz], ✶[nr] and ✶[nl]. The nasal [n] became [m] before labials and [ŋ] before velars, and thereafter underwent the same changes those original consonants(SD/420). Before voiceless dental consonants [t], [tʰ], [s], [n] assimilated to the following consonant (SD/420-1).