lexico-

Etymology tree
Proto-Indo-European *leǵ-der.
Proto-Indo-European *léǵ-e-ti
Proto-Hellenic *légō
Ancient Greek λέγω (légō)
Proto-Indo-European *-tis
Ancient Greek -τις (-tis)
Ancient Greek -σῐς (-sĭs)
Ancient Greek λέξῐς (léxĭs)
Proto-Indo-European *-kos
Ancient Greek -κός (-kós)
Ancient Greek -ῐκός (-ĭkós)
Ancient Greek λεξῐκός (lexĭkós)
English lexico-
From Ancient Greek λεξικός (lexikós, “of words”), from λέξις (léxis, “a saying, speech, word”), from λέγειν (légein, “to speak”).