Yokefellow /(?)/

Yoke·fel·low

Yokefellow

n.
  1. An associate or companion in, or as in; a mate; a fellow; especially, a partner in marriage.
    The two languages [English and French] became yokefellows in a still more intimate manner.
    — Earle.
    Those who have most distinguished themselves by railing at the sex, very often choose one of the most worthless for a companion and yokefellow.