Yours, Etc.: Origins and Uses of 8 Sign-Offs
1570s, present participle adjective from refresh (v.). Mental or spiritual sense is attested from 1690s. Related: Refreshingly.
refresh re·fresh (rĭ-frěsh')
v. re·freshed, re·fresh·ing, re·fresh·es
To cause to recuperate; revive.
To renew by stimulation.
To pare or scrape the edges of a wound to promote healing.