† aˈsweeten,v.Obs.rare. In 7 assw-. [f. a- prefix 11 (improperly written as-, after as-sure, etc.) + sweeten.] To sweeten, make less bitter. 1599Sandys Europ. Spec. (1632) 232 That rigour of Iustice, which the bountifulnesse of this Mercy did mitigate and assweeten.