concavillatio Save DMLBS concavillatio [cf. 1 cavillare] , pinning (of tiles). 1478 Thome J. ‥ operanti ‥ in ‥ ~one [gl.: pynnyng] tegularum ‥; item in cavillis vocatis tyle pynnys (Ac. Guild Trin.) Mun. K's Lynn Gd. 68.