declare vs bastardise

declare and bastardise both are verbs.

Word	Noun	Adjective	Verb	Adverb
declare	No	No	Yes	No
bastardise	No	No	Yes	No

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

declare (verb)	bastardise (verb)
state emphatically and authoritatively	declare a child to be illegitimate
state firmly	change something so that its value declines; for example, art forms
make a declaration (of dutiable goods) to a customs official
declare to be
announce publicly or officially
proclaim one's support, sympathy, or opinion for or against
designate (a trump suit or no-trump) with the final bid of a hand
authorize payments of