cupful

the word 'cupful' is a transparent english compound formed from two native old english elements. the first element, 'cup,' derives from old english cuppe, which itself was borrowed from late latin cuppa, meaning a small vessel. the second element, '-ful,' is a productive suffix in english originating from the old english adjective full, meaning "full, complete." when attached to a noun denoting a container, '-ful' forms a new noun signifying the quantity required to fill that container. this logical and literal construction directly links the physical object ('cup') with its capacity ('full'), creating a standard unit of measure in everyday language.

Structure: cup (container) + ful (full of) cup: from old english cuppe, meaning a drinking vessel or container. it functions as the base noun denoting the specific object. ful: from old english -ful, an adjective-forming suffix meaning "full of." in this compound, it functions as a noun-forming suffix denoting the quantity that fills the base object.