Late 18th century; earliest use found in Thomas Percival (1740–1804), physician. From post-classical Latin morbillosus afflicted with pustules from morbilli or morbillus + -osus.
Definition of morbillous in US English:
morbillous
adjectivemɔːˈbɪləs
rare
Of or relating to measles.
Origin
Late 18th century; earliest use found in Thomas Percival (1740–1804), physician. From post-classical Latin morbillosus afflicted with pustules from morbilli or morbillus + -osus.