drudging is a form of:

Drudge



noun
1.
(a person who does dull or laborious or menial tasks) កម្មករ, ទាសៈ, អ្នកធ្វើការធ្ងន់ហើយមិនល្អ
verb
1.
(INTRANSITIVE) (to do such work, to labor at menial tasks) ធ្វើការមិនគប្បីឥតឈប់ឈរ, ធ្វើការមិនស្អាត