The definition of a nixe is a water fairy, usually one who is at least party human.
An example of a nixe is a fairy like Tinkerbell but who lives in the water.
Variant of nix
nounpl. nixes or nixe
Gmc. Folklore a water sprite, usually small and of human or partly human form
Origin of nixGerman nix, masculine , nixe, feminine ; from Old High German nihhus, sea beast, nicchussa, water sprite, akin to Old English nicor, Old Norse nykr, water sprite ; from Germanic an unverified form nik-, an unverified form nikwus-, water spirit ; from Indo-European base an unverified form neigw-, to wash from source Sanskrit nḗnēkti, (he) washes