出典:Wiktionary
From nit + -y. The “foolish, inane” adjective sense is from nit (“fool, nitwit”), possibly under the influence of nutty (“crazy, mad”).[1]
The origin of the noun sense (“dope fiend, druggie”) is unknown, but could refer to a person who is under the influence of drugs to the extent that he or she is careless about personal hygiene and unkempt. Compare the verb nit (“to be a nitty”).
nitty (comparative nittier または more nitty, superlative nittiest または most nitty)
nitty (複数形 nitties)
Probably from nitty(-gritty).
nitty (comparative nittier または more nitty, superlative nittiest または most nitty)
A clipping of nitid (“bright, lustrous, shining”), or directly derived from Latin nitidus (“glittering, shining”), from niteō (“to glitter, shine; to look beautiful または bright”) (from Proto-Indo-European *ney- (“to shine”)) + idus (“suffix meaning ‘tending to’”).
nitty (comparative more nitty, superlative most nitty)