This compound adjective means 'one hundred years old,' describing someone who has completed a century of life. In Romans 4:19, Paul notes that Abraham was 'about one hundred years old' when considering his body's inability to father children naturally, before Isaac's miraculous conception. The term combines the number 'one hundred' (ἑκατόν) with 'years' (ἔτος), creating an age descriptor. The multilingual evidence is straightforward (Spanish 'de cien años', French 'cent ans', German 'hundertjährig'), all literally rendering 'hundred years old.'