Where does this definition of well thumbed come from?
This entry for well thumbed is sourced from Main Dictionary, one of the dictionaries and corpora merged into Lughet.
Is well thumbed a noun, verb, or something else?
In this entry, well thumbed is tagged as adjective.
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.