The word eerily is an adverb.
You can easily spot adverbs as they mostly end in the suffix -ly.
part of speech
Adjective
What part of speech is thaw
The part of speech for oscillate is verb.
An adjective is a part of speech.
The comparative of eerily is eerier and the superlative for eerily is eeriest
Eerily means in a strange, unearthly way.
The lights shone eerily on the wall as she walked into the room.
The young girl walked slowly into the eerily, dark and spooky forest.
Eerily.
strangely
part of speech
The part of speech for this particular word is a noun.
what part of speech is beneath
what part of speech is work
adverb
Sashay is a verb. It means to walk in an exaggerated, showy manner, often with hip swaying.