The square root of 625 is 25
Rambling means to go at a slow, easy pace; stroll; saunter
curtail is to cut short; cut off the end or a part of; dock; diminish in extent or quantity:
I think you may have forgotten an option. An affix placed before a word or base is called prefix.
Verbal phrase: a group of words including a verb and its complements, objects, or other modifiers that functions syntactically as a verb. In English a verb phrase combines with a noun or noun phrase acting as subject to form a simple sentence.
Yes it has other parts of speech