A band, rope, or chain which runs across the cart-saddle on the back of a draught-horse and supports the shafts of a cart or carriage; a ridge-band, a backband.
1Attributive Apparently: old and misshapen; twisted, gnarled.
2Obstinate, stubborn; wilful, perverse.
Early 16th century. From rig + widdie. Compare earlier rigwithy and later rigwithe, and also earlier ridgeworth.