fianchetto

verb

fi·​an·​chet·​to ˌfē-ən-ˈke-(ˌ)tō  -ˈche- 

fianchettoed; fianchettoing; fianchettos

transitive verb

: to develop (a bishop) in a chess game to the second square on the adjacent knight's file

intransitive verb

: to fianchetto a bishop

Word History

Etymology

fianchetto an opening in chess, from Italian, diminutive of fianco side, flank, from Old French flanc — more at flank

First Known Use

1927, in the meaning defined at transitive sense