wherever vs wheresoever

wherever and wheresoever both are adverbs.

Word	Noun	Adjective	Verb	Adverb
wherever	No	No	No	Yes
wheresoever	No	No	No	Yes

As adverbs, wherever and wheresoever are synonyms defined as:

wherever and wheresoever: where in the world; location, singular, elective existential pronoun

wherever (adverb)	wheresoever (adverb)
where in the world; location, singular, elective existential pronoun	where in the world; location, singular, elective existential pronoun