to fall upon, kill by falling, destroy :-- Hit hreás underbæc and forneán offeóll ða ðe hit ǽr forcurfan the tree fell backwards, and by its fall very nearly killed those who before were cutting it down, Homl. Th. ii. 510, 2. Sigferþ cyning hine offeóll and his líc ligþ æt Wimburnan King Sigferth laid violent hands on himself, and his body lies buried at Wimborne, Chr. 962; Erl. 120, 4. Hé geslóg xxv dracena and hine ðá [of] deáþ offeóll he slew 25 dragons and then death fell upon him, Salm. Kmbl. 430; Sal. 216. Seó módinys wyle offeallan ða eádmódnysse superbia inruere vult super humilitatem, Prud. 32 b. Æfter his fielle wearþ ðara cásera mǽgþ offeallen caesarum familia consumta est, Ors. 6; 6; Swt. 262, 6.