Answer:

renig

Answer	Crossword Clue
RENIG	Welsh.
RENIG	Break one's word.
RENIG	Fail.

RENIG	Welsh on a promise: Colloq.
RENIG	Fail to follow suit.
RENIG	Play the wrong card.
RENIG	Betray a promise: Colloq.
RENIG	Break a promise: Colloq.
RENIG	Go back on a promise: Colloq.
RENIG	Break one's word: Colloq.
RENIG	Fail to follow suit: Var.

RENIG	Misplay: Colloq.
RENIG	Revoke: Ver.
RENIG	Break a rule, at cards.
RENIG	Bridge term.
RENIG	Go back on a decision: Var.
RENIG	Revoke at cards: Var.
RENIG	Err at bridge: Var.
RENIG	Bridge infraction: Var.

RENIG	Make a bridge error: Var.
RENIG	Back down: Var.
RENIG	Make a gaffe at bridge
RENIG	Back out of: Colloq.
RENIG	Break one's word
RENIG	Revoke: Var.
RENIG	Back out
RENIG	Err at cards

RENIG	Go back on a promise

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.