Citron
The citron ("Citrus medica") is a large fragrant citrus fruit with a thick rind. It is one of the original citrus fruits from which all other citrus types developed through natural hybrid speciation or artificial hybridization. Though citron cultivars take on a wide variety of physical forms, they are all closely related genetically. It is used widely in Asian cuisine, and also in traditional medicines, perfume, and for religious rituals and offerings. Hybrids of citrons with other citrus are commercially prominent, notably lemons and many limes.
Citrus
The generic name originated from Latin, where it referred to either the plant now known as citron ("C. medica") or a conifer tree ("Thuja"). It is somehow related to the ancient Greek word for cedar, κέδρος ("kédros"). This may be due to perceived similarities in the smell of citrus leaves and fruit with that of cedar. Collectively, "Citrus" fruits and plants are also known by the Romance loanword "agrumes" (literally "sour fruits").