Early 17th century; earliest use found in Christopher Heydon (1561–1623), soldier and writer on astrology. From post-classical Latin diabeticus diabetic + -al.
Definition of diabetical in US English:
diabetical
adjectiveˌdʌɪəˈbɛtɪkl
rare
Diabetic.
Origin
Early 17th century; earliest use found in Christopher Heydon (1561–1623), soldier and writer on astrology. From post-classical Latin diabeticus diabetic + -al.