Deny (verb): /d?'na?/ à Denial (noun): /d?'na?.?l/
If you can see from the example that I found, like in words potent becomes potential, regiment becomes regimental, they have same final sounds, which is /nt/ but what make me confuse is the sound of -al in potential and regiment.
Why in 'potential' there is -ial and the final sound become /t ? ? l/ but in regiment, it has no -i (-ial) and the final sound is same like the others.
I had try to analyze but I'm still confuse. From my opinion, -ial is allomorph of -al, but they have different rules about the sounds.
Please help me.
Thank you.
Top answer
The only answer I can give you is that -al and -ial are variant suffixes for Latinate loan words. (Latin, Old French) When the root word ended in -nce, then the suffix was -ntial (essence / essential ). When the root ended in -ment, then the suffix was -mental.
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