Re: How Big is the Eye of Harmony? (spoilers Journey to the center TAR
Come to think of it, though... we're able to understand what these characters are saying through the graces of the TARDIS's telepathic translation matrix, right? So maybe the TARDIS simply chose to translate the actual Gallifreyan term for a Type 40 capsule as "TARDIS" out of vanity.
Nice thought... IIRC, Spandrell responds to Engin's mention of a Type 40 by saying TARDIS with a wry affection, mentioning that he used one in the old days, and then Goth later says to Spandrell "We'd better have a look at this... what did you call it, TARDIS?"
"Some days are better than others. They say that where I come from."
"Loudly, I imagine, on the day you left."
(Blake's 7 - Rumours of Death)