the GNU version of the Collaborative International Dictionary of English
n. An associate or companion in, or as in; a mate; a fellow; especially, a partner in marriage.
The Century Dictionary and Cyclopedia
n. One associated with another in labor, or in a task or undertaking; also, one connected with another by some tie or bond, as marriage; a partner; an associate; a mate.
Word Usage
"However, I am very ignorant of these things, and you must refer the riddle of the ring to some one more astute and learned in such matters than your humble 'yokefellow' in Hebrew."