Hypertext Webster Gateway: "Trinal"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Trinal \Tri"nal\, a. [L. trinus triple, trini three each, fr.
tres, tria, three. See {Three}, and cf. {Trine}, a. & n.,
{Tern}, a.]
Threefold. ``Trinal unity.'' --Milton.
In their trinal triplicities on high. --Spenser.
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