- upo
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Under, up from under, over.1.3. above, from Old English būfan, above, over, from Germanic compound *bi-ufana, “on, above” (*bi-, by, at; see ambhi).4. Possibly suffixed form *up-t-. oft, often, from Old English oft, often, from Germanic *ufta, frequently.5. Extended form *upes-.b. eavesdrop, from Old English yfesdrype, water from the eaves, from Germanic *obisdrup-, dripping water from the eaves (*drup-, to drip, from *dhrub-; see dhreu-). Both a and b from Germanic *ubaswō, *ubizwō, vestibule, porch, eaves (< “that which is above or in front”).6. Variant form *(s)up-.10. Probably compound *upo-st-o-. valet, varlet, vassal, from Vulgar Latin *vassus, vassal, from Celtic *wasso-, “one who stands under,” servant, young man (*sto-, standing; see stā-).11.b. Zend-Avesta, from Avestan upa, up to, at (in *upastāvaka-, praise). Both a and b from Indo-Iranian *upa.[Pokorny upo 1106.]
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Universalium. 2010.