My analysis of Primitive Adûnaic phonology is based entirely on “Lowdham’s Report on the Adûnaic Language” written by Tolkien in the 1940s (SD/414-440). See the overview of Adûnaic Phonology for further discussion how the analysis presented here relates to the source material. This lexicon assigns the earliest phonetic changes in Adûnaic to the Primitive Adûnaic period, as well as Tolkien’s description of the phonetic inventory of the primitive form of the language (SD/416).
p-series | t-series | c-series | k-series | |
voiceless-stops | [p] | [t] | [c] | [k] |
voiced-stops | [b] | [d] | [ɟ] ‹j› | [g] |
voiceless-aspirated-stops | [pʰ] ‹ph› | [tʰ] ‹th› | [cʰ] ‹ch› | [kʰ] ‹kh› |
voiceless-continuants | [s] | [ç] | [x] ‹h› | |
voiced-weak-continuants | [w] | [l] [r] [z] | [j] ‹y› | [ɣ] ‹ʒ› [ʔ] |
voiced-nasals | [m] | [n] | [ŋ] ‹ñ› |
vowels | [a] | [i] | [u] |
diphthongs | [ai] | [au] | |
others | [ø] |
primitive Elvish short [e] and [o] became [i] and [u] | [{eo}] | > | [{iu}] | 00100 |
[ʔ] vanished early | [ʔ] | > | [ø] | 00200 |
medial [w] and [j] vanished before [u] and [i] | [Xwu|Xji] | > | [Xøu|Xøi] | 00300 |
most palatals became sibilants [s] or [z] | [{cçcʰ}|ɟ] | > | [s|z] | 00400 |
[n] assimilated in position to following consonants | [n{ppʰbm}|n{kkʰgxɣ}] | > | [m{ppʰbm}|ŋ{kkʰgxɣ}] | 00500 |
stops became aspirates after aspirates | [{ptk}ʰ{bdg|ptk}] | > | [{ptk}ʰ{ptk}ʰ] | 00600 |
[x] became [ɣ] before voiced stops | [x{bdg}] | > | [ɣ{bdg}] | 00700 |