Where does “Cardiospermum” come from?

Cardiospermum (Translingual) comes from Ancient Greek σπέρμα, from Proto-Hellenic *spérmə.

Ancestry of “Cardiospermum”, step by step

Step	Language	Word	Meaning
1	Ancient Greek	σπέρμα	seed; semen, sperm; seed-time, sowing
2	Proto-Hellenic	*spérmə	—