Now I'm thinking about the ORIGIN
of the phrase "train of thought."
The Big Bang Theory Season 4, Episode 20
Excuse me, Wolverine: Origin
Miniseries Issue 2, page 22.
The Big Bang Theory Season 3, Episode 2
There's the ORIGIN
of an entire species
to consider.
Westworld Season 2, Episode 9
Usually Mantari in ORIGIN.
Game of Thrones Season 4, Episode 10
Very similar to C-4, British ORIGIN,
and that the connexion is perfect.
Money Heist Season 1, Episode 11