pinnatura

pinnatura [pinna 4, pinnare+ura] , pinning or underpinning (of wall or building). 1479 solutum lathamo ‥ pro ~a domorum antiquarum Cant. Coll. Ox. 205; 14‥ fundus collegii ‥ in longitudine xxx pedes et in latitudine xxix ut patet ‥ per ~as lapideas antiquas Arch. Hist. Camb. III 6n..