Thank
From BiblePortal Wikipedia
King James Dictionary [1]
1. To express gratitude for a favor to make acknowledgments to one for kindness bestowed.
We are bound to thank God always for you. 2 Thessalonians 1 .
Joab bowed himself and thanked the king. 2 Samuel 14
2. It is used ironically.
Weigh the danger with the doubtful bliss,
And thank yourself, if aught should fall amiss.
Webster's Dictionary [2]
(1): ( n.) A expression of gratitude; an acknowledgment expressive of a sense of favor or kindness received; obligation, claim, or desert, or gratitude; - now generally used in the plural.
(2): ( n.) To express gratitude to (anyone) for a favor; to make acknowledgments to (anyone) for kindness bestowed; - used also ironically for blame.