septuagenary

/ˌsɛpt͡ʃəd͡ʒɛnəri/

Etymology

From Latin septuāgēnārius (“containing 70”) either directly or via French septuagénaire, from Latin septuāgēnus (“70 each”) + -ārius (“-ary”), from septuāgintā (“seven tens, 70”). Cognate with septuagenarian.

septuagenary means of or related to the number seventy, particularly. Lexicurio rates it Sui generis — a strength score of 87 out of 100.

adj

Of or related to the number seventy, particularly
Of or related to the number seventy, particularly; Synonym of septuagenarian: lasting or aged seventy years; seventy-year-old.

noun

Synonym of septuagenarian: a seventy-year-old.