[1] : The Collaborative International Dictionary of English v.0.48

yokefellow \yoke"fel`low\, n. yoke + fellow.
   an associate or companion in, or as in; a mate; a fellow;
   especially, a partner in marriage. --phil. iv. 3.
   1913 webster

         the two languages english and french became
         yokefellows in a still more intimate manner. --earle.
   1913 webster

         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.
   1913 webster

[2] : Easton's 1897 Bible Dictionary

yoke-fellow
   phil. 4:3, one of the apostle's fellow-labourers. some have
   conjectured that epaphroditus is meant. wyckliffe renders the
   phrase "the german felowe", i.e., "thee, germane =genuine
   comrade."
   

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Yokefellow, definition of term: Yokefellow
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