ขอบพระคุณ

Etymology
From 🇰🇲.

Interjection

 * 1)  thank you.

Verb

 * 1)  to thank; to give thanks.

Usage notes

 * Used to thank a person of equal or higher status, signifying great respect.
 * May be prefixed with such terms as or  for more formality.
 * See usage notes of also.