English word leafcup comes from English cup, English leaf

Detailed word origin of leafcup

Dictionary entry	Language	Definition
cup	English (eng)	(transitive) To form into the shape of a cup, particularly of the hands.. (transitive) To hold something in cupped hands.. (transitive, engineering) To make concave or in the form of a cup.. (transitive, obsolete) To supply with cups of wine.. (transitive, surgery, archaic) To apply a cupping apparatus to; to subject to the operation of cupping. (Canada) A Canadian unit of measure equal to 8 [...]
leaf	English (eng)	(botany) A foliage leaf or any of the many and often considerably different structures it can specialise into.. (computing, mathematics) In a tree, a node that has no descendants.. (in the plural) Tea leaves.. A moveable panel, e.g. of a bridge or door, originally one that hinged but now also applied to other forms of movement.. A flat section used to extend the size of a table.. A sheet of [...]
leafcup	English (eng)	A coarse American composite weed, Polymnia uvedalia, now Smallanthus uvedalia.