register(n.1)
late 14c., registre, “public record book, private account book, an official written account regularly kept,” from Old French registre (13c.) and directly from Medieval Latin registrum, regestrum, properly regestum, from Late Latin regesta “list, matters recorded,” noun use of Latin regesta, neuter plural of regestus, past participle of regerere “to record; retort,” literally “to carry back, bring back” from re- “back” (see re-) + gerere “carry, bear” (see gest).
Via etymonline