proadverbs
Proadverbs, also called pro-adverbs, are a class of linguistic proforms that stand in for adverbs or adverbial expressions in discourse. Like other proforms (for example pronouns replacing nouns), proadverbs help avoid repetition and maintain cohesion by referring back to a previously stated time, place, manner, degree, or other adverbial meaning.
Proadverbs do not add new information about the circumstance; instead they substitute for a larger adverbial
Temporal proadverbs: then, now, soon can act as substitutes for longer time expressions, as in: We will
Locative proadverbs: there, here may substitute for longer locative phrases, as in: Put it there. (standing for
Manner and other adverbial proforms: so, thus, or other proforms can function to replace an adverbial expression
Proadverbs are usually treated as a subtype of proforms. They are closely related to pro-nouns and pro-verbs