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).
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.