triune

adj

Etymology: PIE word *tréyes Borrowed from New Latin triūnus.

1. Both trine and one at the same time.

   “Christians believe in a triune God, meaning that he is three hypostases in perfect unity.”

   “The entire member seems a dense webbed bed of welded sinews; but cut into it, and you find that three distinct strata compose it:—upper, middle, and lower. […]. This triune structure, as much as anything else, imparts power to the tail.”

2. Of an artistic or literary work composed of three parts united by a single theme.

   “And, with that end, Zeus reëmerges as the divine protagonist of the triune drama.”