Why 厚かましい is not 厚がましい


I usually encounter adjectives of this form `adj+がましい` which means similar to
`adj+らしい` based on my understanding. I recently discovered this word 厚かましい. I
find it peculiar that it ends with かましい not がましい. Is there any reason for this
oddity? Or maybe 厚かましい have no relation to がましい and it's just a coincidence?




I think it's because 厚か is the word with ましい is the stem - so か is not being
used as a substitute for the が particle. I could be wrong

