Word Study
epact
CIDE DICTIONARY
epact, n. [F. épacte, fr. Gr. 'epakto`s brought on or in, added, fr. 'epa`gein to bring on or in; 'epi` on, in + 'a`gein to bring or lead. See Epi-, and Act.].
The moon's age at the beginning of the calendar year, or the number of days by which the last new moon has preceded the beginning of the year. [1913 Webster]
OXFORD DICTIONARY
epact, n. the number of days by which the solar year exceeds the lunar year.
Etymology
F {eacute}pacte f. LL epactae f. Gk epaktai (hemerai) intercalated (days) f. epago intercalate (as EPI-, ago bring)
ROGET THESAURUS
epact
Redundancy
N redundancy, redundance, too much, too many, superabundance, superfluity, superfluence, saturation, nimiety, transcendency, exuberance, profuseness, profusion, repletion, enough in all conscience, satis superque, lion's share, more than enough, plethora, engorgement, congestion, load, surfeit, sickener, turgescence, overdose, overmeasure, oversupply, overflow, inundation, avalanche, accumulation, heap, drug, drug in the market, glut, crowd, burden, excess, surplus, overplus, epact, margin, remainder, duplicate, surplusage, expletive, work of supererogation, bonus, bonanza, luxury, intemperance, extravagance, exorbitance, lavishment, pleonasm, too many irons in the fire, embarras de richesses, redundant, too much, too many, exuberant, inordinate, superabundant, excessive, overmuch, replete, profuse, lavish, prodigal, exorbitant, overweening, extravagant, overcharged, supersaturated, drenched, overflowing, running over, running to waste, running down, crammed to overflowing, filled to overflowing, gorged, ready to burst, dropsical, turgid, plethoric, obese, superfluous, unnecessary, needless, supervacaneous, uncalled for, to spare, in excess, over and above, de trop, adscititious, supernumerary, on one's hands, spare, duplicate, supererogatory, expletive, un peu fort, over, too, over and above, overmuch, too much, too far, without measure, beyond measure, out of measure, with a to spare, over head and ears, up to one's eyes, up to one's ears, extra, beyond the mark, acervatim, it never rains but it pours, fortuna multis dat nimium nulli satis, Degree of Subservience.For further exploring for "epact" in Webster Dictionary Online