Definify.com
Webster 1913 Edition
Mortally
Mor′tal-ly
,adv.
 1. 
In a mortal manner; so as to cause death; 
as, 
. mortally 
wounded2. 
In the manner of a mortal or of mortal beings. 
I was 
mortally 
brought forth. Shakespeare
3. 
In an extreme degree; to the point of dying or causing death; desperately; 
as, 
. mortally 
jealousAdrian 
mortally 
envied poets, painters, and artificers, in works wherein he had a vein to excel. Bacon.
Webster 1828 Edition
Mortally
MOR'TALLY
,adv.
  1.
  Extremely. Adrian mortally envied poets, painters and artificers, in works wherein he had a vein to excel.
Definition 2025
mortally
mortally
English
Adverb
mortally (comparative more mortally, superlative most mortally)
- Fatally; in such a way as to cause death. [from 14th c.]
 -  (obsolete) As a mortal. [16th-17th c.]
-  1596, Edmund Spenser, The Faerie Queene, V.1:
- And all the depth of rightfull doome was taught / By faire Astræa with great industrie, / Whilest here on earth she lived mortallie […].
 
 
 -  1596, Edmund Spenser, The Faerie Queene, V.1: