sepal
Word family adjectivesepalinesepalousnounsepalodysepal
sep·al /ˈsepəl $ ˈsiː-/ noun [countableC] technical HBPone of the small leaves directly under a flower 〔花的〕萼片 Origin sepal (1800-1900) Modern Latin sepalum, from sepa- (from Greek skepe “covering”) + -lum (as in petalum “petal”)