ʕiyār عِيار , pl. ‑āt, ʔaʕyiraẗ
1 standard measure, standard, gauge (of measures and weights); 2a fineness (of gold and silver articles), standard (of gold and silver coins); b caliber; 3 (pl. ‑āt, ʔaʕyiraẗ) (rifle) shot (also ʕiyār nārī) – WehrCowan1976
▪ Etymology obscure
▪ Perh. related to ↗ʕāra ‘to wander, etc.’, the index of scales *‘going to and fro’? Or to ↗†ʕYR_9 *‘prominent\protuberant part of s.th.’, as the scales show the excess of weight etc.? Cf. also below, section DISC.
▪ [v1] : in MSA almost exchangeable with ↗miʕyār.
▪ [v2] : specifications of the more general [v1].
▪ [v3] : meton. use of [v2b], a rifle shot being likened to the ‘calibre’ of a rifle bullet.
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▪ No obvious cognates in Sem or outside, but cf. perh. ↗ʕāra or †²ʕayr (↗ʕYR_9) (see above, section CONC); see also below, section DISC.
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▪ According to Leslau2006 (CDG, s.v. Gz ʕarraya), Lindberg1897: 87 compares Gz ʕarräyä with Ar ʕāyara (L-stem) ‘to make even’.
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►ʕāyara, vb. III, to gauge (measures, weights), test the accuracy (‑h of measures, of weights)
►ʕayyār, pl. ‑ūn, n., 1 ↗¹ʕayyār; 2 (pl. -āt) crane (machine)
►BP#1677miʕyār, n., measuring, mensuration, gauging, measurement, measure; – (pl. maʕāyīrᵘ) standard measure, standard, gauge (of measures and weights); standard; norm | miʕyār al-ʕayš, Iiving standard; miʕyār al-ḏahab, gold standard
►muʕāyaraẗ, n.f.: muʕāyaraẗ al-mawāzīn wa’l-makāyīl, verification of weights and measures of capacity (by the bureau of standards) For other values attached to the root, cf. ↗ʕāra, ↗ʕayyara, ↗ʕār, ↗¹ʕayr, ↗ʕīr, ↗¹ʕayyār, ↗²ʕayyār, and ↗miʕyār, as well as, for the overall picture, root entry ↗ʕYR (with overlappings also from ↗ʕWR, ↗ʕRW and ↗ʕRY).