effuse vs give off

effuse and give off both are verbs.

Word	Noun	Adjective	Verb	Adverb
effuse	No	No	Yes	No
give off	No	No	Yes	No

As verbs, give off is a hypernym of effuse; that is, give off is a word with a broader meaning than effuse:

effuse: give out or emit (also metaphorically)
give off: give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.

Other hypernyms of effuse include emit, give out.

effuse (verb)	give off (verb)
give out or emit (also metaphorically)	have as a by-product
flow or spill forth	give off, send forth, or discharge; as of light, heat, or radiation, vapor, etc.
pour out liberally