กระหม่อม

n. 1. the crown of the head;

adv. 2. yes, as you say; pron. 3. the first personal pronoun (used when speaking to a prince of a higher rank).

กระหม่อมฉัน, เกล้ากระหม่อม- the first personal pronoun (used by a commoner in addressing a prince of higher rank);

ทูลกระหม่อม- a term of respectful address (used only for the children of a sovereign by a queen).