oblige
Definitions
To compel or require someone to do something by law, duty, or circumstance
（因法律、义务或形势）强制，迫使
To do someone a favour or help them willingly
（乐意地）帮忙，施恩惠，满足请求
Root Breakdown
Root-derivedob- (onto) + ligāre (bind) = to tie a duty onto someone. The 'forced' sense is the rope pulling tight on you ('obliged to pay'); the 'favour' sense is loosening someone else's bind by helping them ('happy to oblige'). 'Much obliged' literally means 'I'm now bound to you' — a thank-you that admits a debt.
Root lig still carries 18 more wordsUsage Guide
Two patterns to keep apart: 'be obliged to do sth' = be forced/required (passive, about duty). 'oblige sb (with/by)' = do them a favour (active, courteous). 'Much obliged' is a slightly formal, old-fashioned 'thank you.' British English also spells the noun obligingly polite.
Example Sentences
- 1.
The contract obliges both parties to give thirty days' notice.
- 2.
I felt obliged to help, even though I was exhausted.
- 3.
If you ever need a lift, I'd be happy to oblige.
- 4.
Thanks for sorting that out so quickly — much obliged.
Easily Confused
oblige vs compel vs require — all mean 'force someone to act,' but oblige stresses a binding duty or moral pull ('obliged to repay a kindness'); compel stresses external force or pressure ('compelled by hunger'); require is neutral and rule-based ('the form requires a signature'). Note oblige uniquely also means 'do a favour,' which compel/require never do.