Word Study
soever
CIDE DICTIONARY
soever,
A word compounded of so and ever, used in composition with who, what, where, when, how, etc., and indicating any out of all possible or supposable persons, things, places, times, ways, etc. It is sometimes used separate from the pronoun or adverb. [1913 Webster]
"For unto whomsoever much is given, of him shall be much required." [1913 Webster]
"What great thing soever a man proposed to do in his life, he should think of achieving it by fifty." [1913 Webster]
OXFORD DICTIONARY
soever, adv. literary of any kind; to any extent (how great soever it may be).
For further exploring for "soever" in Webster Dictionary Online