THANK, verb transitive
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 1:3.
Joab bowed himself and thanked the king. 2 Samuel 14:22.
2. It is used ironically.
Weigh the danger with the doubtful bliss,
And thank yourself, if aught should fall amiss.