triune
Meaning
consisting of three in one, especially referring to the three persons of the Christian Trinity in one Godhead.
(by extension) threefold in character or nature.
Structure
Usage
The doctrine of the triune God is central to most Christian theology.
The artist sought to represent the triune nature of the concept through a single, interconnected sculpture.
Their philosophy proposed a triune model of the mind, consisting of thought, emotion, and will.
Etymology
The word 'triune' is a modern formation, coined in the 17th century from two classical roots to serve a specific theological need. It directly combines the Latin-derived 'tri-' (three) and '-une' (a variant of 'uni-', from Latin 'ūnus' meaning one). This construction was designed to encapsulate the paradoxical Christian doctrine of the Trinity—three distinct persons (Father, Son, Holy Spirit) existing as a single Godhead. Thus, the term's logic is purely synthetic, building an abstract concept from the literal arithmetic of its classical morphemes to describe a complex unity in plurality.
Analysis
'tri' is a combining form from Latin 'trēs' and Greek 'treis', meaning "three". 'une' is a variant of the combining form 'uni', from Latin 'ūnus', meaning "one".