on
with dat. (location) or acc. (direction)
Attested in Aelfric's Colloquy 1, Aelfric's Colloquy 2, Exeter Book Riddle 51, Sellic Spell, Ætherlwold's Reforms, Ælfric's Lives of Saints - Saint Eugenia, Aelfric's Colloquy 3, Aelfric's Colloquy 4, Exeter Book Riddle 5