Word Study
whatso
CIDE DICTIONARY
whatso, indef. pron.
Whatsoever; whosoever; whatever; anything that. [1913 Webster]
"Whatso he were, of high or low estate." [1913 Webster]
"Whatso the heaven in his wide vault contains." [1913 Webster]
OXFORD DICTIONARY
whatso, adj. & pron. archaic = WHATEVER 1, 2.
Etymology
ME, = WHAT + SO, f. OE swa hw{aelig}t swa
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