Correct
勚
/ yì /
Strokes
Definition
(literary) toilsome/laborious/(of an edge etc) worn out/blunt
Example
As an Adjective
toilsome; toilful
1
Láoyì
劳勚
toil
As an Adjective
(of an edge, point, etc) worn; dull; blunt
2
Luósī
螺丝
kòu
扣
yì
勚
le
了
。
The thread of the screw was worn out.