KJV Dictionary Definition: rein
REIN, n. L. retina, retinaculum. If contracted from the Latin, it is from retineo, otherwise from the root of arrest.
1. The strap of a bridle, fastened to the curb or snaffle on each side, by which the rider of a horse restrains and governs him.
2. The instrument of curbing, restraining or governing; government.
To give the reins, to give license; to leave without restraint.
To take the reins, to take the guidance or government.
1. To govern by a bridle.
2. To restrain; to control.
REINS, n. plu. L. ren, renes.
1. The kidneys; the lower part of the back.
2. In Scripture, the inward parts; the heart, or seat of the affections and passions. Ps. 73.