Early 17th century; earliest use found in Thomas Heywood (c1573–1641), playwright and poet. From omni- + various; compare post-classical Latin omnivarius.
Definition of omnivarious in US English:
omnivarious
adjective
rare
Of all varieties or kinds.
Origin
Early 17th century; earliest use found in Thomas Heywood (c1573–1641), playwright and poet. From omni- + various; compare post-classical Latin omnivarius.