From Wiktionary, the free dictionary
Proto-West Germanic *lang English summerlong
From summer + -long.
summerlong (not comparable)
- Extending throughout a summer
2007 August 3, Mary M. Chapman, “Growing Pains for a Yearly Tribute to Classic American Cars”, in New York Times[1]:“We don’t want it to be a summerlong event, though,” said Corrigan O’Donohue, a lieutenant with the Royal Oak Police Department.
