12th cent. From Latin plicare "to fold." According to Roberts (2014), an extension of the sense of being 'folded' into something as an arrival at a destination.
From Proto-Italic *plek- 'id.' From Proto-Indo-European *pleḱ- 'id.'
Romance: Western Vulgar Latin: Asturian llegar, Portuguese chegar, Catalan plegar, French plier, Italian piegare; Eastern Vulgar Latin: Aromanian plec, Romanian pleca; Sardinian: pigiàre
Indo-European: Germanic: Old Norse flétta "to plait," Old High German flehtan, Old English fleohtan 'id.;' Balto-Slavic: Old Church Slavonic plesti "to plait," Russian plestí 'id.,' Hellenic: Ancient Greek πλέκειν (plékein) "to braid;" Indo-Iranian: Sanskrit praśna- "turban," Young Avestan -frašna- "helm," "mail"