Unreviewed (from Wiktionary)Arabic exports

surd

First attested in the mid 16th century from Latin surdus (“deaf, mute”), used in mathematics for “irrational,” reflecting ἄλογος (álogos, “irrational, speechless”) as found in Euclid, apparently transmitted via Arabic جِذْر أَصَمّ (jiḏr ʔaṣamm, “deaf root”). The phonetic sense, “voiceless,” emerged in the 18th century. Doublet of surdo.

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This journey was extracted automatically from Wiktionary (CC BY-SA 4.0) and hasn't been checked by a person yet. Dates marked “c.” are estimated from each language's period, and every hop is graded at best “probable”.

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c. 750 CEArabic

Hops are evenly spaced; labels show the year each form is first attested.

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