Faustregel

== German == === Etymology === Since at least the end of the 19th century. From Faust (“fist”) +‎ Regel (“rule”). The semantic development is unknown. === Pronunciation === IPA(key): [ˈfaʊ̯stˌʁeːɡl̩] === Noun === Faustregel f (genitive Faustregel, plural Faustregeln) rule of thumb Synonyms: Daumenregel, Faustformel ==== Declension ==== === See also === über den Daumen Pi mal Daumen überschlagen === Further reading === “Faustregel” in Duden online “Faustregel”, in Digitales Wörterbuch der deutschen Sprache‎[2] (in German)