Solicitude is a noun.
I have a feeling of solicitude towards my parents.
You could say: The parents had a solicitude feeling for their children. They didn't want them getting hurt.
The root word of "solicitude" is "solicit," which comes from the Latin word "sollicitus," meaning anxious or concerned.
The word solicitude is defined as showing concern or care for an individual or a thing. It is a noun.
unvelievable & unhuman treatment
The part of speech for this particular word is a noun.
part of speech
The part of speech for "answer" is a noun.
adverb
what part of speech is beneath
The part of speech for "unfamiliar" is an adjective.
The part of speech of "came" is a verb.