Home › Words › T › toyesistoyesistoyesis · noun — the origin or development of toy design from media, and vice versa.Definition from Wiktionary (CC BY-SA 3.0).EtymologyBack-formation from toyetic, equivalent to toy + -esis.nounThe origin or development of toy design from media, and vice versa.Definitions & examples from Wiktionary (CC BY-SA 3.0).