"lay the basis of, establish," late 13c., from Old French fonder "found, establish; set, place; fashion, make" (12c.), from Latin fundare "to lay the bottom or foundation" of something, from fundus "bottom, foundation" (see fund (n.)). Related: Founded; founding. Phrase founding fathers with reference to the creators of the American republic is attested from 1916.
"to cast metal," late 14c., originally "to mix, mingle," from Old French fondre "pour out, melt, smelt" (12c.), from Latin fundere (past participle fusus) "to melt, cast, pour out," from nasalized form of PIE root *gheu- "to pour." Meaning "to cast metal" is from 1560s. Related: Founded; founding.
"discovered," late 14c., past-participle adjective from find (v.). Expression and found attached to the wages or charges in old advertisements for job openings, traveling berths, etc., indicates that meals are provided. It comes from the expression to find one's self "to provide for one's self." "When a laborer engages to provide himself with victuals, he is said to find himself, or to receive day wages" [Bartlett, "Dictionary of Americanisms," 1848]. Hence, so much and found for "wages + meals provided."