underdress vs tog

underdress and tog both are verbs.

Word	Noun	Adjective	Verb	Adverb
underdress	No	No	Yes	No
tog	No	No	Yes	No

As verbs, tog is a hypernym of underdress; that is, tog is a word with a broader meaning than underdress:

Other hypernyms of underdress include apparel, clothe, dress, enclothe, fit out, garb, garment, habilitate, raiment.

underdress (verb)	tog (verb)
dress informally and casually	provide with clothes or put clothes on
dress without sufficient warmth