Ancient. I never knew I was saying it wrong until Jonathon pointed it out, and ever since then I've been paying attention. No one says it the way I do. I say angk-shent. As in, the first syllable is like the one in anxious. And now every time I hear someone say anxious, I think "Hah! There's someone who pronounces it the way I do!" and then I remember it's the wrong word. Oh, dear.