πάμπρωτος

η, ον, Adv.
A. the very first, first of all, Il. 7.324, 9.93: neut. πάμπρωτον as Adv., Od. 4.577; ἐπεὶ π. εἶδον φέγγος Pi. P. 4.111: also in pl. ‐πρωτα, Il. 4.97, 17.568: Sup. παμπρώτιστα A.R. 4.1693.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
An open-access project