Proto-Dravidian : *cer- (*k̂-?, *k-?)
Meaning : to insert, put in
Proto-South Dravidian: *cer- Notes : Complicated case: if NDR belongs here, *ker- could be expected. On the other hand, if we assume that Kannada serku is re-borrowed from Tamil, the SDR protoform can point to *ker-, in which case everything is regular.