Reference to "the Discovery" in TOS:
https://kimikomura19.wordpress.com/2016/08/25/reference-to-u-s-s-discovery-in-tos/
KIRK: Something, Mister Spock?
SPOCK: Unusual, Captain. I'm now getting a sizable space-displacement reading.
KIRK: Can you verify that, Navigator?
DESALLE: No, sir. Forward sweeps are negative. Wait. Verified, sir. We must be in some sort of light warp or we'd have picked it up earlier.
KIRK: Put it on visual. (A purple globe appears on the viewscreen)
DESALLE: Iron-silica body, planet sized, magnitude 1-E. We'll be passing close.
SPOCK: Inconceivable this body has gone unnoted on all our records.
KIRK: And yet, here it is. No time to investigate. Science stations, gather data for computer banks.
Uhura, notify the Discovery on subspace radio.
LOL it's discovery, without the captial D. The Enterprise made a discovery and reported it on subspace radio. That's all.