geminate
🇺🇸
/ˈdʒemɪneɪt/
🇬🇧
/ˈdʒemɪneɪt/
having the same sound or letter repeated
The word 'geminate' itself is a great example of a geminated word because it has the 'm' sound repeated.
'geminate'という言葉自体が、'm'の音が繰り返されるため、重複した音の良い例です。