अग्रेसरagresaramf(ई)n. going in front, preceding, best L.
mf(ई)neuter gender going in front, preceding, best Lexicographers
कोशःDictionaries
Every entry for a word in Apte, Monier-Williams, Macdonell and the Dhātupāṭha, with their abbreviations spelled out, and an analysis of its forms.