Um Definition
(chiefly US) Expression of confusion or space filler in conversation. See uh.
Alternative form of umbe.
(slang) An unstressed form of them.
Denotes singular grammatical number.
(chemistry) Forms the ends of the names of certain elements (such as molybdenum and platinum).
Origin of Um
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From Middle English um-, umbe-, embe-, from Old English ymb-, ymbe- (“around”), from Proto-Germanic *umbi (“around, about, by, near”), from Proto-Indo-European *ambʰi (“by, around”). Cognate with Dutch om- (“around”), German um- (“around”), Latin amb- (“around, about”), Latin ambi- (“both”), Ancient Greek ἀμφί (amphí-, “around, about”), Sanskrit अभि (abhi, “against, about”). More at umbe.
From Wiktionary
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From Middle English um, from Old Norse um, umb (“around, about"), from Proto-Germanic *umbi (“around"), from Proto-Indo-European *ambÊ°i- (“by, around"). Cognate with Old English ymbe (“around"). More at umbe.
From Wiktionary
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From the homographic case endings of the nominative, accusative, and vocative forms of numerous neuter Latin second declension nouns.
From Wiktionary
A Latin-script rendering of µm.
From Wiktionary
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Contracted from them
From Wiktionary