n.
Pronunciation: ˌ f ē - ə n- ' ke-( ˌ )t ō , - ' che-
Function: verb
Etymology: fianchetto an opening in chess, from Italian, diminutive of fianco side, flank, from Old French flanc ― more at FLANK
Date: 1927
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