·adv In the manner of a mortal or of mortal beings.
II. Mortally ·adv In a mortal manner; so as to cause death; as, mortally wounded.
III. Mortally ·adv In an extreme degree; to the point of dying or causing death; desperately; as, mortally jealous.
very ; a mortal good doctor, mortacious wholesome. Kent. ...
A glossary of provincial and local words used in England by Francis Grose