setenta
/seˈtenta/ · B2 · num
seventy
7️⃣0️⃣ setenta = sete-ish (siete, 7) + -nta (tens ending) = seven tens = 70
Spanish tens ending in -nta (cuarenta, cincuenta, sesenta, setenta) come from Latin -ginta, meaning tens. Setenta comes from Latin septuaginta: septem (seven) + ginta (tens). Seven tens means 70.