
comes from the
Greek word...
The Big Bang Theory Season 12, Episode 6

WALT JR.:
Who's Nick the Greek?
Breaking Bad Season 4, Episode 5

Leonard, you hate Greek food.
The Big Bang Theory Season 4, Episode 21

TV, film, D&D, manga.
Greek, Roman, Norse gods...
The Big Bang Theory Season 1, Episode 6

...like a tiny Jewish Greek god.
The Big Bang Theory Season 6, Episode 1