Frequently with good, true, etc. An agreeable, intimate, or beloved companion of another specified person; a (dear) friend. Also: a friend or…

An affable or jovial companion; a sociable or convivial person; spec. one who associates with others in feasting, drinking, and merrymaking, esp…

Qualified by merry, mad, gay: A merry fellow; a roysterer; a boon companion; a person of loose habits.

lit. ‘good-fellow’, used in a jovial bacchanalian sense, transferred to other phrases, and occasionally predicatively: Jolly, convivial.

A person of a jovial or convivial disposition.

A boon companion. Obsolete. Cf. the use of Corinthian in Shakespeare, etc.

colloquial. A merry or roystering fellow; a boon companion; a person of dissolute life; also (in later use only) as a vague term of commendation or…

Indulging in, or fond of, conviviality and social merriment; festive; jovial. the jolly god, Bacchus. jolly fellow, jolly dog, a person of…

One who lives convivially or practises conviviality; a person of convivial habits.

Hence boon companionship n. boonfellow n. (treated as a single word).

fellow well met: a person who is companionable, sociable, or convivial. Similarly to be fellow-well-met: to be on friendly or familiar terms with a…

One who ‘jollies’ or flatters others; a jovial or sociable person.