A word compounded of so
, used in composition with who
, 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."
"What great thing soever a man proposed to do in his life, he should think of achieving it by fifty."