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The speakers of Proto-Indo-European were farmers and stockbreeders: we can reconstruct words for bull, cow, ox, ram, ewe, lamb, pig, and piglet. They had many terms for milk and dairy foods, including sour milk, whey, and curds. When they led their cattle and sheep out to the field they walked with a faithful dog. They knew how to shear wool, which they used to weave textiles (probably on a horizontal band loom). They tilled the earth (or they knew people who did) with a scratch-plow, or ard, which was pulled by oxen wearing a yoke. There are terms for grain and chaff, and perhaps for furrow. They turned their grain into flour by grinding it with a hand pestle, and cooked their food in clay pots (the root is actually for cauldron, but that word in English has been narrowed to refer to a metal cooking vessel). They divided their possessions into two categories: movables and immovables; and the root for movable wealth (*peku-, the ancestor of such English words as pecuniary) became the term for herds in general.10 Finally, they were not averse to increasing their herds at their neighbors’ expense, as we can reconstruct verbs that meant “to drive cattle,” used in Celtic, Italic, and Indo-Iranian with the sense of cattle raiding or “rustling.
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David W. Anthony (The Horse, the Wheel, and Language: How Bronze-Age Riders from the Eurasian Steppes Shaped the Modern World)