• enkidu,
• enki,
• enkaide,
• enkeid,
• wnkidu,
• snkidu,
• dnkidu,
• rnkidu,
• enkiidu,
• enkiedu,
• enkiud,
• enkiddu,
• enkiduu,
• enkitu,
• enridg,
• enskiedd,
• Enkiy,
• Enuide,
• Enkidue,
• Inkedu

• enkaid.

The plural form of the word "enkidu" would be "enkidus".

The singular form of the word "Enkidu" is "Enkidu" itself. It is a proper noun referring to a character from the ancient Mesopotamian epic of Gilgamesh.