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Etymology · Proto-Indo-European

*óynos

4 English words descend from Proto-Indo-European *óynos, most common first.

inchAn English unit of length equal to 1/12 of a foot or 2.54 cm.
unityOneness: the state or fact of being one undivided entity.
ounceAn avoirdupois ounce, weighing ¹⁄₁₆ of an avoirdupois pound, or 28.349523125 grams.
onçaA traditional Portuguese unit of mass, usually equivalent to 28.7 g.