Where does this definition of night-long come from?
This entry for night-long is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Does night-long appear elsewhere on Lughet?
Yes — night-long appears under other sources or language pairs in Lughet's collection. See the list below.
What is Lughet?
Lughet is a free trilingual dictionary covering nearly five million entries across Uyghur, Chinese, and English, drawn from more than ten source dictionaries and corpora.