[fee-uh n-ket-oh, -chet-oh]Chess.
noun, plural fi·an·chet·ti [fee-uh n-ket-ee, -chet-ee] /ˌfi ənˈkɛt i, -ˈtʃɛt i/.
the development of a bishop, in an opening move, by advancing one or two pawns so as to permit movement along the bishop's diagonal.
verb (used with or without object), fi·an·chet·toed, fi·an·chet·to·ing.
to set up or develop as a fianchetto.
Origin of fianchetto
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
noun plural -tos or -ti (-tiː)
the development of a bishop on the second rank of the neighbouring knight's file or the third rank of the nearer rook's file
verb -toes, -toing or -toed
to develop (a bishop) thus
Word Origin for fianchetto
C19: from Italian diminutive of fianco flank
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
chess move, Italian, diminutive of fianco "flank" (attack), from Old French flanc "hip, side" (see flank (n.)).
Online Etymology Dictionary, © 2010 Douglas Harper