The word for heart is identical* to the word for Baal - (bl) in Hebrew and Chaldee.
From Strong's Hebrew Dictionary:
H1078, bel - Hebrew word for Baal, is found in Isa 46:1, Jer 50:2, 51:44.
H1079, bal - Chaldee word for heart, is found in Dan 6:14.
(* The only difference as listed is...