Gnomish
gam
noun. shout
gam(m)a-
noun/verb. gain, profit, interest (on moneys), increase; to be profitable, bring in revenue; to gain
gama-
verb. to call, shout to
auba
noun. shout
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. {gamba- >>} gama- or gamma- in the Gnomish Lexicon of the 1910s, appearing twice with two different translations: “gain, profit, interest (on moneys), increase” and “to be profitable, bring in revenue; (tr.) to gain” (GL/37). The first set of glosses may be as a noun, despite the “-” at the end of the word form. These words may be related to the early root ᴱ√yṇt from which the adverb G. gantha “more” was derived.
Neo-Sindarin: I would adapt this as a verb ᴺS. ganna- “gain; be profitable, bring in revenue” based on the Neo-Root ᴺ√GYANTA having to do with increase.