Furthermore, are there any other words that retained their larger, pronounced つ when this change occurred?
Edit: 仏像 seems to be another one.
Furthermore, are there any other words that retained their larger, pronounced つ when this change occurred?
Edit: 仏像 seems to be another one.
It's because 在 (ざい) starts with a voiced sound (z). You usually don't see a sokuon before voiced sounds, except in gairaigo.