The triad; three in one
Trinitie is a modern spelling variant of Trinity. It refers to the Christian doctrine of the Holy Trinity, representing the Father, Son, and Holy Spirit as one God. The name gained popularity in the late 20th century as a virtue name and spiritual choice.
Less common today
Trinitie isn't in the latest US Top 1000. It last peaked at #4,832 in 2001.
US births per 5-year period, 1990βpresent (SSA data).