English Theasurus that shows all the ways the English word is translated from the original Greek and Hebrew.
English Theasurus from the Hebrew and Greek Strong's Dictionary
leavened 2556 -- chamets -- cruel (man), dyed, be grieved, {leavened}.
leavened 2557 -- chametz -- leaven, {leavened} (bread).
unleavened 0106 ** azumos ** {unleavened} (bread).