药食同源

lit. food and medicine come from the same source (idiom) / fig. there is no clear-cut distinction between food and medicine

leaf of the iris / variant of 藥|药[yao4]

medicine / drug / substance used for a specific purpose (e.g. poisoning, explosion, fermenting) / CL:種|种[zhong3],服[fu4],味[wei4] / to poison

to eat / food / animal feed / eclipse

to feed (a person or animal)

like / same / similar / together / alike / with

see 衚衕|胡同[hu2 tong4]

homology (biology) / a common origin

root / source / origin