from Old Khmer.

In Malay and Indonesian, there are three infixes (sisipan), , , and . All infixes are no longer productive and cannot be used to derive new words.Examples include:
* The word 'gembung' (variant of 'kembung') means "bloated", while 'gel'embung' means "bubble"'.
* The word 'cerlang' means "luminous", while 'cemerlang' means "brilliant"'.