[ All + four (cards). ] A game at cards, called “High, Low, Jack, and the Game.” [ 1913 Webster ]
[ formerly, All` four".] All four legs of a quadruped; or the two legs and two arms of a person. [1913 Webster]
To be,
go,
run,
on all fours
n. The product of four times twenty; eighty units or objects. [ 1913 Webster ]
a. [ Four + core, n. ] Four times twenty; eighty. [ 1913 Webster ]
a. [ Four + 2d -some. ] Consisting of four; requiring four participants. [ Scot. or Golf ] [ Webster 1913 Suppl. ]
n.
a. Having four sides and four equal angles. Sir W. Raleigh. [ 1913 Webster ]