What does ADVOWSON APPENDANT mean? July 19, 2017 All Dictionary ADVOWSON APPENDANT meaning in Law Dictionary letter advowson annexed to a manor, and passing with-it, as event or appendant to it, by a grant of manor just, without including any other terms. 2 Bl. Comm. 22; Co. Litt. 120. 121; 1 Crabb, Real Prop. p. 130, 5 118.