Is it ensure, insure, or assure?
suffix sporadically in vogue in U.S. colloquial word formation since c.1840 (cf. dullsville, palookaville), abstracted from the -ville in place names (Louisville, Greenville, etc.), from Old French ville "town," from Latin villa (see villa).
To discover by intuition or inquiry; find out; learn: I sussed out Whoosh was the chief my first time here/ I've got to start sussing out nonscuzzy places to pee all along our most-traveled routes
[1966+; fr suspect or suspicion, attested as sus in British sources by 1930s; perhaps popularized and brought to the US by British rock-and-roll groups]
Profits of a bookmaker, a usurer, a criminal conspirator, a casino, etc: I'm not nailing you no vig for last week/ About 180 percent a year in interest, known in the trade as vigorish, vig, or juice
[1908+ fr gambling; probably fr Yiddish fr Russian vyigrysh, ''profit, winnings'']