COCKY
cocky
(adjective) overly self-confident or self-assertive; “a very cocky young man”
Source: WordNet® 3.1
Etymology 1
Adjective
cocky (comparative cockier, superlative cockiest)
Overly confident; arrogant and boastful.
Synonym: Thesaurus:arrogant
Etymology 2
Noun
cocky (plural cockies)
(chiefly, Britain, Ireland, colloquial, dated) Used as a term of endearment, originally for a person of either sex, but later primarily for a man.
Etymology 3
Noun
cocky (plural cockies) (chiefly, Australia, New Zealand, informal)
A (familiar name for a) cockatoo.
(also, attributively) Short for cockatoo farmer; (by extension) any farmer or owner of rural land.
Synonyms: cockatoo, crofter
Usage notes
In New Zealand, cocky (sense 2) is often synonymous with sheep cocky (“a sheep farmer”), due to the relative importance of the industry.
Verb
cocky (third-person singular simple present cockies, present participle cockying, simple past and past participle cockied)
(intransitive, chiefly, Australia, informal, historical) To operate a small-scale farm.
Synonym: cockatoo
Source: Wiktionary
Cock"y, a. Etym: [See Cocket.]
Definition: Pert. [Slang]
Source: Webster’s Unabridged Dictionary 1913 Edition