UPPISHLY
snobbishly, snootily, uppishly
(adverb) in a snobbish manner; “they snobbishly excluded their less wealthy friends from the party”
Source: WordNet® 3.1
Etymology
Adverb
uppishly (comparative more uppishly, superlative most uppishly)
In an uppish manner, arrogantly, with an air of superiority.
(cricket, of a ball, hit by a batsman) In an upward direction, with the chance of being caught.
Source: Wiktionary
UPPISH
Up"pish, a. Etym: [From Up.]
Definition: Proud; arrogant; assuming; putting on airs of superiority.
[Colloq.] T. Brown.
– Up"pish*ly, adv. [Colloq.] -- Up"pish*ness, n. [Colloq.]
Source: Webster’s Unabridged Dictionary 1913 Edition