"establish," late 13c., from O.Fr. founder, from L. fundare "to lay the bottom or foundation of something," from fundus "bottom, foundation" (see fund (n.)).
"cast metal," c.1390, from M.Fr. fondre "pour out, melt, mix together," from O.Fr. fondre, from L. fundere "melt, cast, pour out," from PIE *gheud-, from root *gheu- "to pour" (cf. Goth. giutan, O.E. geotan "to pour").