Gnomish
thin-
verb. to skim
thinta-
verb. to skim
musc
adjective. grey
Beware, older languages below! The languages below were invented during Tolkien's earlier period and should be used with caution. Remember to never, ever mix words from different languages!
A word appearing as G. thin- “skim” in the Gnomish Lexicon of the 1910s along with a variant thinta-, both clearly related to the noun G. thim “milk, after separation” (GL/71-72).
Neo-Sindarin: These 1910s verbs conflict with the later root √THIN “grey” and the verb [N.] thinna- “fade” from ON. thintha-. As such, I adapt this verb as ᴺS. thiv- “to skim” based on a Neo-Root ᴺ√THIM which I used to justify the retention of ᴺS. thim for “milk”.