Noun--however, many words have several possible parts of speech; please submit the Whole Sentence when asking for part of speech--cannot be sure without seeing how it is used in the sentence, as that's what determines the part of speech.
The part of speech that asks: how, when, and where, are adverbs.
Adjective
"trotted" is a past tense part of speech.
Prefixes do not have their own part of speech.
The part of speech for oscillate is verb.
(braggadocio - cockiness, or more rarely a braggart)She was tired of the braggadocio of her bodybuilder boyfriend.The pirate's braggadocio turned to fear as two warships appeared on the horizon.
His friend's braggadocio apparently hid deeper feelings of inferiority. The braggadocio of the warriors was soon replaced by panicked retreat.
Vain and empty boasting
part of speech
boaster, braggadocio, braggart, egotist, swaggerer, vulgarian
egotistical arrogant conceited braggadocio
what part of speech is beneath
The part of speech is a adjective
adverb
Superior can be a noun or an adjective.Examples:He was considered a superior because he had a big house.In the sentence above, superior is used a noun meaning, "a person higher in rank."He had superior knowledge of the inside of the strange house because he had been in it several times.In the sentence above, superior is used as an adjective meaning, "more than average."