a. (sb.) [a. L. triplex, -plic- threefold, f. tri- three + plic- to fold.] Triple, threefold. Also absol. as sb.
1601. Shaks., Twel. N., V. i. 41. The triplex … is a good tripping measure, or the belles of S. Bennet,… may put you in minde, one, two, three.
[1654. D. Cawdrey (title), Diatribe Triplex: or A threefold Exercitation Concerning 1. Superstition. 2. Will-worship. 3. Christmas Festivall.]
1655. Hammond (title), An account of Mr. Cawdry’s Triplex Diatribe.
1656. S. Holland, Zara (1719), 71. So that now there is like to be a trouble in Triplex.
1911. W. Temple, Nat. Personality, viii. 112. We are not so compelled to speak of three centres of consciousness in the Deity; rather we should speak of a triplex consciousness.
Hence Triplexity = TRIPLICITY.
1881. B. Franklin, The Creed and Modern Thought, 12. The I [ego] dwells in its own triplexity, and acts, through body, soul and spirit, at will, calling one or another or all together into subjective contemplation or outward action.
1895. in Funk’s Stand. Dict.
