Steven, your name is really cool! It’s an ancient Greek name meaning “Crown, Garland.”
Sindarin
The Sindarin word for “crown, garland” is Rî. On its own it’s gender-neutral, and to make it gendered, we add feminine and masculine name suffixes.
Masculine: Ríon.
Feminine: Ríeth or Ríel.
Now, as a name for your Role Play characters in Middle-earth, these don’t work. It’s just the word for “crown” and Elves don’t name themselves random objects without showing a connection to how they are connected to that object. Luckily, we have a very convenient word – “Rîn – crowned, garlanded.” We’ll add a few name suffixes to make names that mean “Crowned One.”
Masculine: Rínor.
Feminine: Ríneth, Rínel, or Rínil.
Quenya
In Quenya, translating this name is also very simple. The Quenya word for “crown, garland” is Rie. Adding suffixes onto this will be a little tricky, so I’ll include the nouns “nér – man” and “nís – woman.”
Masculine: Rio or Riener.
Feminine: Rienis.
Again, these names don’t work for your Elven characters. We’ll make the names from the adjective “Rína – crowned, garlanded.”
Masculine: Ríno.
Feminine: Ríne. In Quenya, there’s a specific word for a “garlanded maiden – Rielle” which you may recognize as part of Galadriel’s name.
Steven, I hope that you found this article fun and interesting!
If you’d like your name translated in this series, comment below and I’ll consider it for a future article!
Sources:
Hanks, Patrick & Hodges, Flavia. A Dictionary of First Names Oxford University Press. 1990. pg 309.
Wiktionary, “Στέφανος” Last edited: May 3rd, 2021
Croatian Stipe and Hungarian Istvan are cool and you left them out. I think the Slavic borrowings and descendants are interesting.