Briefly

From BiblePortal Wikipedia

Vine's Expository Dictionary of NT Words [1]

1: Διά (Strong'S #1223 3641 — Preposition — di' oligon — dee-ah' )

lit. means "by few." In  1—Peter 5:12 it signifies by means of few words, "briefly." The RV of   Romans 13:9 omits "briefly," the meaning being "it is summed up."

King James Dictionary [2]

BRIE'FLY, adv. Concisely in few words.

Webster's Dictionary [3]

(adv.) Concisely; in few words.

References