-ō
suffix. genitive (draft)
-ô
preposition. from
A prepositional suffix translated “from” (SD/429). In a few places, the suffix appears with the glide-consonant v (pronounced [w]) between it and a preceding u-vowel (SD/247, 249). It is likely related to the Quenya genitive inflection Q. -o.
Conceptual Development: At an earlier conceptual stage, this suffix was a grammatical inflection, the draft-genitive -ō (SD/438).
-ôn
suffix. adjective or agental suffix
A suffix appearing only in the name Pharazôn “Golden” and possibly also in Zimrathôn. Since the element pharaz is elsewhere defined as “gold” (LotR/1114, SD/426), perhaps this suffix can be used to form adjectives from nouns in Adûnaic. Andreas Moehn suggested (EotAL/ZIM’R) it may instead be an agental suffix, a variant of -ân.
ammê
noun. mother
A noun for “mother” (SD/434). Tolkien gave two forms of this word, ammî and ammê, with no indication as to which would be preferred. However, ammî resembles a plural word, and Tolkien elsewhere stated that such forms tended to change their final vowel to -ê (SD/438), so my guess is that ammî is an archaic form. This word is probably related to the Elvish root √AM “mother”. Some authors have suggested it is directly related to ᴹQ. amme (AAD/10, AL/Adûnaic), but as Andreas Moehn points out (EotAL/MAM) such basic words are rarely borrowed from other languages, so the relationship is more likely from the Primitive Elvish root.
-û
suffix. masculine suffix
A suffix used to form masculine nouns from common or neuter nouns (SD/435). Another common variant was -ô (SD/438).
-ân Reconstructed
suffix. agental suffix
A suffix that is used in some examples for agental-formation: creating nouns from verbs that indicate the agent who performs the verb’s action. The clearest example is sapthân “wise man” derived (after some ancient sound modifications) from saphad- “to understand”. This formation means “✱one who understands”. Less clear examples are ✱magân “wright, ✱builder”, perhaps from a verb ✱mag- “to build”, and kathuphazgân “conquerer”, perhaps a combined of katha “all” and a verb ?phazag- “to take”, meaning “✱one who takes all”.
It is not clear how this suffix related to the similar participle suffix -ân used for form adjectives from verbs. See the entry on participle for further discussion. Andreas Moehn suggested (EotAL/TAN) that -ân as an agental formation may be related to anâ “human being”.
yô Reconstructed
noun. gift
An element in the name Yôzâyan “Land of Gift” (UT/184, SD/241). The final element of this name is zâyan “land”, so its initial element yô most likely means “gift”, as suggested by several authors (AAD/24, AL/Adûnaic, EotAL/YAW), though Andreas Moehn points out this word could have the form yôz instead (EotAL/YAW).
The suffix used for the draft-genitive case, with a plural form -ōm (SD/438). In a later conceptual stage, it became the ordinary prepositional suffix -ô.