Senility

1.

(State of being senile; senior adjective older in age, higher in rank or authority, for older children; a person of greater rank or longer service, an older person) ជរាភាព, ភាពចាស់ជរា, ភាពវង្វេងវង្វាន់, ចាស់ជរា
Example: The senior senator from United Kingdom.

2.

(វេជ្ជសាស្ត្រ) ជរាភាព

1.

The quality or state of being senile; old age.