Dictionary entry

Thenceforth

Webster's Dictionary 1913

Thence′forth″ (?), adv. From that time; thereafter.

If the salt have lost his savor, wherewith shall it be salted? it is thenceforth good for nothing. Matt. v. 13.

This word is sometimes preceded by from, — a redundancy sanctioned by custom. Chaucer. John. xix. 12.