Webster’s Revised Unabridged Dictionary · 1913
Effective
Ef·fect′ive, a. [L. effectivus: cf. F. effectif.] Having the power to produce an effect or effects; producing a decided or decisive effect; efficient; serviceable; operative; as, an effective force, remedy, speech; the effective men in a regiment.
They are not effective of anything, nor leave no work behind them. Bacon.
Whosoever is an effective, real cause of doing his heighbor wrong, is criminal. Jer. Taylor.
Syn. — Efficient; forcible; active; powerful; energetic; competent. See Effectual.
Ef·fect′ive, n. 1. That which produces a given effect; a cause. Jer. Taylor.
2. One who is capable of active service.
He assembled his army — 20,000 effectives — at Corinth. W. P. Johnston.
3. [F. effectif real, effective, real amount.] (Com.) Specie or coin, as distinguished from paper currency; — a term used in many parts of Europe. Simmonds.