triplicity
The quality or state of being triple or threefold; trebleness.
countable, uncountable
In their trinall triplicities on hye
The division of the twelve signs according to the four elements.
countable, uncountable
he very promptly and speedily formed and fashioned a complete fabric of the houses of heaven in all their parts, whereof when he had considered the situation and the aspects in their triplicities, he fetched a deep sigh, and said: I have clearly enough already discovered unto you the fate of your cuckoldry, which is unavoidable, you cannot escape it.
Where it comes from
From triplic(ate) + -ity, from Latin triplicitas, from Latin triplex, triplicis (“threefold”). Compare French triplicité. See triplicate.
Adapted from the Wiktionary entry triplicity (CC BY-SA 4.0).