Whatsoever
Easton’s Bible Dictionary & Webster’s 1828 Dictionary · Matthew George Easton, Noah Webster
Whatsoever - (Webster's 1828 Dictionary)
WHATSOEVER, a compound of what, so, and ever, has the sense of whatever, and is less used than the latter. Indeed it is nearly obsolete. Whatso, in a like sense, is entirely obsolete.
Source of the article
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
Bible Strong combined digital edition