taredres 1028. Ultimately fromLate Latintaratrum, attested byIsidore of Seville. Either fromPaleo-Hispanic or fromGaulish, fromProto-Celtic*taratrom, fromProto-Indo-European*térh₁-tro-. Alternatively fromAncient Greekτέρετρον(téretron,“borer, gimlet”).
Cognate withPortuguesetrado andSpanishtaladro.