a root is a form of:

Payable



adjective
1.
(បច្ចេកទេស) ដែលត្រូវចំណាយ, ដែលបង់, ដែលដល់ពេលបង់
ENGLISH MEANING
adjective
1.
That may be discharged or settled by delivery of value.
2.
That may, can, or should be paid; suitable to be paid; justly due.
3.
Matured; now due.