The triad or three-in-one
Tryniti is a modern creative spelling of Trinity. It refers to the Christian doctrine of the Holy Trinity, representing the Father, Son, and Holy Spirit. The name has gained popularity in recent decades as a virtue name symbolizing unity and faith.
Less common today
Tryniti isn't in the latest US Top 1000. It last peaked at #6,517 in 2007.
US births per 5-year period, 1990βpresent (SSA data).