from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. Slightly; somewhat; sort of.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adv. to some (great or small) extent
From a reanalysis "kind of" in a phrase such as "a kind of merry dance" from noun ("kind") and preposition ("of") from the prepositional phrase "of merry dance" to adverb modifying "merry". (Wiktionary)