toil, diligent, as much as possible
努 centers on putting in effort: toiling, being diligent, and doing as much as possible. It's about applying force to achieve something.
努 combines 奴 (which likely provides the sound) with 力 (strength/power), suggesting exerting strength or effort.
奴 (servant) on top of 力 (power) — a servant must use all their power to toil diligently.
For ド, imagine a diligent worker saying 'do' as they put in effort: do -> ド, and they do as much as possible.
effort; exertion; endeavour; endeavor; hard work; striving
to endeavor (to do); to endeavour; to try hard; to work hard; to strive; to make an effort; to exert oneself; to devote oneself; to be committed (to doing)
never; by no means
third principle of the Eight Principles of Yong; downward stroke
certainly; absolutely
untiring labor (labour)
business efforts; corporate efforts
as much as possible; as far as possible; to the best of one's ability; diligently
fruit of one's labor; result of one's efforts
after efforts in vain
making strenuous efforts; exerting oneself
hard worker; hardworking person
goal to strive for; challenge
obligation to make a sincere effort (to follow a set of rules, etc.)
prize awarded for good effort; consolation prize
diplomatic efforts
making strenuous efforts; exerting oneself
try one's best; all-out effort; strenuous efforts
management effort; managerial effort; operation action
self-help efforts; independent efforts; self-supporting endeavor