Where does “お元気で” come from?

お元気で (Japanese) comes from Japanese で, from Japanese ぜ, from Japanese ぞえ, from Japanese え, from Middle Chinese 衣.

お元気で (Japanese): take care, good-bye

Definitions

take care, good-bye

Ancestry of “お元気で”, step by step

お元気で traces back through 3 separate lines of ancestry.

via Japanese で

Step	Language	Word	Meaning
1	Japanese	で	at; with, by, using; indicating the following...
2	Japanese	ぜ	sentence-ending particle signifying emphasis,...
3	Japanese	ぞえ	sentence-ending particle signifying emphasis, used to lightly press one's point, with affectionate overtones
4	Japanese	え	Alternative form of い
5	Middle Chinese	衣	—

via Japanese 元気

Step	Language	Word	Meaning
1	Japanese	元気	healthy; energetic; in a good mood; peppy; lively
2	Japanese	元	cause, origin; basis, foundation; cost
3	Japanese	始め	beginning, the start of an activity or time...
4	Japanese	始める	begin; start; initiate; originate

via Japanese お

Step	Language	Word	Meaning
1	Japanese	お	諾 yes, alright, okay; オ a sign used in some...
2	Middle Chinese	惡	—

Every word from Middle Chinese 衣 →Every word from Japanese え →Every word from Japanese ぞえ →