august (adj.)
1660s, from Latin augustus "venerable, majestic, magnificent, noble," probably originally "consecrated by the augurs, with favorable auguries" (see augur (n.)); or else "that which is increased" (see augment).
August
eighth month, 1097, from Latin Augustus (mensis), sixth month of the later Roman calendar, renamed from Sextilis in 8 B.C.E. to honor emperor Augustus Caesar, literally "Venerable Caesar" (see august (adj.)). In England, the name replaced native Weodmonað "weed month."