yayin

The standard lexica (BDB, HALOT, DCH) and TDOT (Dommershausen) treat יַיִן as the general, unmarked noun for finished, fermented grape wine, the most common of the Bible's several wine terms. It belongs to a Mediterranean culture-word family with close cognates in Ugaritic yn, and further afield in Greek οἶνος, Latin vinum, Hittite wiyana-, and Armenian gini; whether the shape spread as an ancient migratory loanword (a Wanderwort of Caucasian viticulture, so Rabin and the agnostic lexica) or was inherited from Indo-European (Beekes, Gorton, Lipp) remains genuinely debated, but that debate concerns the word's distant origin, not its sense. Every lexicon defines the word as fermented, and the comparative work of Sasson and Walsh sets it against its cousins: תִּירוֹשׁ is the pre-storage must of the vineyard, שֵׁכָר the stronger drink (barley beer, on Homan's argument), עָסִיס the sweet luxury wine, and חֶמֶר a poetic byform. The nineteenth-century American two-wine theory (later Teachout, Reynolds, Bacchiocchi), which held that יַיִן sometimes means unfermented juice, has no support in the standard lexica and collapses under philological, contextual, and archaeological scrutiny (Gentry, Stein, Broshi); as McGovern's work on ancient viticulture shows, grape must ferments within hours in a warm climate with no way to arrest it. The genuine qualification recovered by mainstream scholarship is not non-alcoholic wine but routine dilution with water for table use.