|Origin:||stellaris, from Latin stella 'star'|
stel‧lar [only before noun]
relating to the stars ➔ interstellar
2 especially American English
the company's stellar growth
McKellen gave a stellar performance.
3 British English informal
if a pop band, actor etc goes stellar, they become very popular and famous:
There's a stand-up comedian, and my sources tell me he is about to go stellar.