IdiomDaily LifeArabic

يضرب في حديد بارد (yadrib fi hadid barid)

Meaning: To waste effort on a hopeless task.

Literally: To strike cold iron

Example: “محاولة إقناعه بترك التدخين ضرب في حديد بارد.” — Trying to get him to quit smoking is beating a dead horse.

English equivalent: To beat a dead horse

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Origin: A blacksmith can shape iron only while it is red-hot; cold iron does not give under the hammer. Striking cold iron is wasting effort on something that will not change. English has the reverse advice, "strike while the iron is hot." No first use is documented.

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