1Knowledgeable about performance in a ring, especially a boxing ring. Also as noun with the and plural agreement: people knowledgeable about such matters as a class.
2Skilled in the art and tactics of boxing or wrestling.
Early 20th century; earliest use found in Fairbanks (Alaska) Daily News. From ring + wise.
In a ring, so as to form a ring or rings.
Late 16th century; earliest use found in Raphael Holinshed (c1525–?1580), historian. From ring + -wise.