OVERNICE
dainty, nice, overnice, prissy, squeamish
(adjective) excessively fastidious and easily disgusted; “too nice about his food to take to camp cooking”; “so squeamish he would only touch the toilet handle with his elbow”
Source: WordNet® 3.1
Etymology
Adjective
overnice (comparative more overnice, superlative most overnice)
Excessively nice or fastidious.
Source: Wiktionary
O"ver*nice", a.
Definition: Excessively nice; fastidious. Bp. Hall.
– O"ver*nice"ly, adv.
– O"ver*nice"ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition