YOKEFELLOW
Etymology
Noun
yokefellow (plural yokefellows)
A companion; a fellow labourer, a person who works at the same task as another. [from 16th c.]
(now, rare, historical) Someone joined in marriage to another; a spouse. [from 16th c.]
Source: Wiktionary
Yoke"fel`low, n. Etym: [Yoke + fellow.]
Definition: An associate or companion in, or as in; a mate; a fellow;
especially, a partner in marriage. Phil. iv. 3.
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. Addison.
Source: Webster’s Unabridged Dictionary 1913 Edition