-ke is a Frisian and Low German younger form of the Germanic diminutive suffix -ka. It is usually used for both genders.
Variant spellings include -cce (creative), -ce (creative), -che (creative), -cke, -kke.
Variant forms include -ge (Sami), -gge, -k, -ka (Sami), -ká (Sami), -ki (Old Swedish), -kki (Finnish), -kku (Finnish), -ku (Finnish).
List of Names with the suffix -ke