engender vs sire

engender is not a noun while sire is a noun.

Word	Noun	Adjective	Verb	Adverb
engender	No	No	Yes	No
sire	Yes	No	Yes	No

As verbs, engender and sire are synonyms defined as:

Other synonyms of engender include beget, bring forth, father, generate, get, mother.

engender (noun)	sire (noun)
	male parent of an animal especially a domestic animal such as a horse
	the founder of a family
	a title of address formerly used for a man of rank and authority

engender (verb)	sire (verb)
make (offspring) by reproduction	make (offspring) by reproduction
call forth