Where does this definition of not seldom come from?
This entry for not seldom is sourced from GetWord Corpus, one of the dictionaries and corpora merged into Lughet.
Is not seldom a noun, verb, or something else?
In this entry, not seldom is tagged as 2adv..
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.