Yea, with absinthe I did occured to me, but was surprised it didnt take it without the e. Astrolab and astrolabe sound completely different, so I cant see how you could forget it.
A bit nit picky but Absinthe can be spelt without the final e.
Not a big deal but I was surprised that the answer wasn't accepted until I added the e.
From Wikipedia: Absinth (without the final e) is a spelling variant most commonly applied to absinthes produced in central and eastern Europe, and is specifically associated with Bohemian-style absinthes.
So basically it's like asking in a history quiz with the letter "T" for "large ship which sank the HMS Hood" and having "The Bismarck" as an answer.
Even tho alhambra is more known as one word - It's still wrong if you want to be a nitpick
(Though I typed astrolobe first..)
Not a big deal but I was surprised that the answer wasn't accepted until I added the e.
From Wikipedia: Absinth (without the final e) is a spelling variant most commonly applied to absinthes produced in central and eastern Europe, and is specifically associated with Bohemian-style absinthes.