Three; third-born
Treyon is a modern American invention, likely created by blending the name Trey with the popular suffix '-on'. Trey itself is derived from the Middle English and Old French word for 'three', traditionally given to a third-born son or a third-generation namesake.
Less common today
Treyon isn't in the latest US Top 1000. It last peaked at #3,153 in 1997.
US births per 5-year period, 1990–present (SSA data).
