Definition of "thereout"
thereout
adverb
not comparable
(archaic) Out of it, out from it.
Quotations
Claius presently went to a Fisherman, & having agreed with him, and provided some apparrell for the naked stranger, he imbarked, and the Shepheards with him: and were no sooner gone beyond the mouth of the haven, but that some way into the sea they might discerne (as it were) a stayne of the waters colour, and by times some sparkes and smoke mounting thereout.
1590, Philip Sidney, Countess of Pembroke's Arcadia
"Keep thy money, man, and gi's thy hand," says he, and they shake hands; but the old gamester gives the new hat to the shepherd, and, soon after, the half-sovereign to Willum, who thereout decorates his sweetheart with ribbons to his heart's content.
1895, Thomas Hughes, Tom Brown's Schooldays, page 38