Heard spelling

thyrs

Spelled thyrse. a silent e

Is the final e needed?

It is, and it says nothing. Thyrse came through French, which is where the silent e was picked up.

The Latin is thyrsus and English uses that form as well. Thyrse is the shortened French version with its ending intact, in the way that corpse, verse and course all carry an e nobody pronounces.

Say

THURSS, rhyming with verse

Letters

T-H-Y-R-S-E