When in the pirate speak language, the lime stained glass pane reads "LIme porthole" with the L and I in lime capitalized. Maybe this is a bug, or maybe it is just something that is normal and only pirates understand. See the attached pic. I took the pic in 1.7.4, but the bug still exists in the 14w... snapshots.
This ticket is a language translation request and is not supported on this bug tracker.
Please use the Crowdin Minecraft Translation Project for all translation change or add requests.