Adverbial is a 9 letter English word. It's valid Words with friends word worth 18 points.
You can make 485 anagrams from letters in adverbial (aabdeilrv).
1605-15; Latin adverbi(um) adverb + -al1; compare Late Latin adverbiālis
When it is used in this manner, it loses its adverbial force.
Because, the conjunction, may introduce an adverbial clause only.
The adverbial sense to be wholly transferred to the cognate word.
An adjective or an adverbial clause may express place or time.
A prepositional phrase may be either adjective or adverbial.
The sense of the word is adverbial; its form, however, is that of a dative case.
It has, perhaps, its origin in the adverbial character of that gender.
The simple predicate may be modified by an adverbial objective ( 109).
Other examples are rare, and I have not found any instance of an adverbial use.
The adverbial adjective "needlessly" explains the broad distinction.