Just the English language being itself: 'sion' and 'tion' endings

C'mon English - 's' = 't' all of a sudden?

Information
Submission

Station
Emission

"Ah, maybe it is something to do with the vowels preceding it, like 'i'?"

Nice try, disembodied voice, but no!

Secession
Accretion

Incision
Cognition

Suffossion (ok, I admit I had to look that one up :P )
Potion

Only preceded by 'u' do we get a reliable difference

Fusion (makes a 'j' noise)
Evolution

Comments

[gapty]

I'm confused. Why is it weird that the letter before -ion should be only s or t? Should lion now be tion?

[abrony-mouse]

5778048
hey, thanks for commenting on my silly thing :P

I wasn't being serious but it's about pronunciation not changing when the letter changes - 'tion' and 'sion' sound the same in all these context.

Although the answer to your question is yes!

"Rawr, I'm an angry tion, I disavow the long feline liony sound of my vowels and embrace a hard sound like shun, and emission and even suffossion which is a word that means undermining something apparently. "

[gapty]

5778050

Ohhh, pronounciation! Now it makes sense