Q. -lvë suf. “we (inclusive)”
The suffix -lvë is the first person plural inclusive inflection: “we (including you)” (PE17/130; VT49/16, 51). The corresponding possessive form -lva “our (inclusive)” appears in its genitive form -lvo in the famous phrase elen síla lúmenn’ omentielvo.
Possible Etymology: Tolkien indicated that this inflection was ultimately derived from the primitive pronoun ✶we, with the same plural marker l as other plural inflections such as -l(yë) and -ltë, and that its oldest form was ✶-lwe (PE17/130; VT49/50-51). At one point Tolkien indicated that the change of lw > lv was the normal phonetic development in Quenya (PE17/129). There little evidence that Tolkien carried through with the phonetic rule, however, and there are plenty of examples of unmodified lw in later Quenya. A better explanation might be that -lwe changed to -lve under the influence of the independent pronoun ve². These ideas came out of a discussion with Shihali on the Vinyë Lambengolmor Discord server on Jan 28, 2018.
Conceptual Development: @@@
References ✧ PE17/130; VT49/16, 51
|✶-lwe > -lve||[-lwe] > [-lve]||✧ PE17/130|
|✶we > -lwe > -lve||[-lwe] > [-lve]||✧ VT49/51|
Q. -lmë² suf. “we (inclusive)”
References ✧ PE17/57, 129, 190; VT49/38, 48