DEVISAVIT VEL NON, practice. The name of an issue sent out of a court of chancery, or one which exercises chancery jurisdiction, to a court of law, to try the validity of a paper asserted and denied to be a will, to ascertain whether or not the testator did devise, or whether or not that paper was his will. 7 Bro. P. C. 437; 2 Atk. 424; 5 Barr, 21.