ekatma
tat-ekātma-rūpa — the same form, nondifferent from svayaṃ-rūpa;
CC Madhya 20.165
tat-ekātma nāma — the name is tad-ekātma;
CC Madhya 20.183
tat-ekātma-rūpe — in the form of tad-ekātma;
CC Madhya 20.184