A neologism coined by Röandil in 2023-08-29 on the Vinyë Lambengolmor Discord Server (VLDS), a combination of Q. in(do) “mind” with Q. virya- “to change [self]”.
Quenya
ahya-
verb. to change
virya-
verb. to change, alternate
vista-
verb. to change (transitive)
inwirya-
verb. to change one’s mind, reconsider
inwis
change of mind, mood
inwis noun "change of mind, mood". A following, bracketed form inwissi is either the plural, the ancestral form or a variant (PE17:191; cf. inwisti). Likely, inwis is to have the stem inwiss- before endings (alternatively inwist-, see inwisti below, and compare the verb vista- "to change").
valwistë
noun. change of mind
walwistë
change of mind
walwistë noun "change of mind" (PE17:189)
walwistë
noun. change of mind
This verb is intransitive, so it can be used of change of self but not of others. For change of others, use vista-.
One form of this word, wirne (PE17/191), is unclear in function. It is glossed “change” and could be a noun. However, it almost identical in form to the strong-past virne of virya- attested on PE17/189. It seems likely to me that this is the archaic form of the strong-past tense from before the change of ✶w- to v-.
Evidence elsewhere suggests the noun form of “change” is vistë.