köken: From Latin duplus or duplex; if from the former, it is uncertain whether it was inherited or not, and may have been taken from a Catalan or Provençal intermediate, as the final '-e' rather than '-o' is unexpected. If from the latter, it is possible that it came from a Vulgar Latin *duplem as a variant accusative to Latin duplex (rather than the normal duplicem), formed analogically.…
aile: abreviatura doble, agente doble, al doble, barra doble, caldera doble, cama doble, de doble filo, doble barra vertical, doble cara, doble clic
köken: Equivalent to duo (“two”) + -plex (“-fold”). Possibly inherited from Proto-Italic *dupleks, if Umbrian 𐌕𐌖𐌐𐌋𐌀𐌊 (tuplak) is cognate (however, its meaning is uncertain and its form poses some difficulty). The Italic form may be an analogical alteration (with the du- of duo replacing *dwi-) of an original Proto-Indo-European *dwi-pleḱ-s; compare Ancient Greek δίπλαξ (díplax).
aile: duplicō
Duplex omnīnō est iocandī genus, ūnum illīberāle, petulāns, flāgitiōsum, obscēnum, alterum ēlegāns, urbānum, ingeniōsum, facētum.
köken: From Proto-Indo-Iranian *dwayás, from Proto-Indo-European *dwoyós. Cognate with Ancient Greek δοιός (doiós), Lithuanian dveji̇̀, Proto-Slavic *dъvojь, Old Norse Tveggi. Related to द्व (dva, “two”).