curtail vs abridge

curtail and abridge both are verbs.

Word	Noun	Adjective	Verb	Adverb
curtail	No	No	Yes	No
abridge	No	No	Yes	No

As verbs, abridge is a hyponym of curtail; that is, abridge is a word with a more specific, narrower meaning than curtail:

Other hyponyms of curtail include immobilise, immobilize, ration, control, restrict.

curtail (verb)	abridge (verb)
place restrictions on	reduce in scope while retaining essential elements
terminate or abbreviate before its intended or proper end or its full extent	lessen, diminish, or curtail