Modern American creation, possibly meaning gift or alive
Tyshay is a contemporary American name likely formed by combining the popular prefix 'Ty-' with the name Shay. While its exact etymology is not fixed, it is often associated with the Hebrew name Shai, meaning 'gift', or the Irish name Shea, meaning 'stately'.
Less common today
Tyshay isn't in the latest US Top 1000. It last peaked at #6,775 in 1997.
US births per 5-year period, 1990βpresent (SSA data).