to chagrin is a form of:

Chagrin



noun
1.
(a feeling of annoyance and) ការបារម្ភ, ភាពទុក្ខព្រួយ, ភាពអស់សង្ឃឹម
verbpast tense: chagrined ; past participle: chagrined ; present participle: chargrining ;
1.
(TRANSITIVE) (To vex deeply) ធ្វើឱ្យមានទុក្ខព្រួយឬមានបារម្ភ, ធ្វើឱ្យអស់សង្ឃឹម
Example: Nimol was chagrined when Dara lost the race.
ENGLISH MEANING
verbpast tense: chagrined ; past participle: chagrined ; present participle: chargrining ;
1.
To excite ill-humor in; to vex; to mortify; as, he was not a little chagrined.
2.
(INTRANSITIVE) To be vexed or annoyed.
1.
Chagrined
2.
Vexation, mortification