terminate vs terminus

terminate is not a noun while terminus is a noun.

Word	Noun	Adjective	Verb	Adverb
terminate	No	No	Yes	No
terminus	Yes	No	No	No

terminate (noun)	terminus (noun)
	either end of a railroad or bus route
	station where transport vehicles load or unload passengers or goods
	(architecture) a statue or a human bust or an animal carved out of the top of a square pillar; originally used as a boundary marker in ancient Rome
	the ultimate goal for which something is done
	a place where something ends or is complete

terminate (verb)	terminus (verb)
bring to an end or halt
terminate the employment of; discharge from an office or position
have an end, in a temporal, spatial, or quantitative sense; either spatial or metaphorical
be the end of; be the last or concluding part of