year-long
UK: ˈjɪəˌlɒŋ | US: ˈjɪrˌlɔːŋ
adj. lasting for or spanning a full year
The compound "year-long" combines "year" (from Old English "gear," meaning a cycle of seasons) and "long" (from Old English "lang," meaning extended in time or space). The fusion reflects a straightforward descriptive logic—something that lasts the duration of a year. This transparent structure is typical of English compound adjectives, where two standalone words merge to specify duration.
The team undertook a year-long expedition to Antarctica.
Her year-long internship provided invaluable experience.
The project requires year-long commitment from all participants.
A year-long drought severely affected the region's agriculture.
The museum is hosting a year-long exhibition on ancient civilizations.