Etymology
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throughout (prep.)
late Old English þurhut; see through + out (adv.). Similar formation in German durchaus.
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anasarca (n.)
"subcutaneous dropsy," late 14c., medical Latin, abbreviation of Greek phrase (hydrops) ana sarka "(dropsy) throughout the flesh," from ana "throughout" (see ana-) + sarx (genitive sarkos) "flesh" (see sarcasm). Abbreviation of Greek phrase hydrops ana sarka "dropsy throughout the flesh."
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endmost (adj.)
1725, from end (n.) + -most. Middle English had endemest (adv.) "from end to end, throughout."
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globally (adv.)
"throughout the whole world," by 1910, from global + -ly (2).
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epidemic (n.)
1757, "an epidemic disease, a temporary prevalence of a disease throughout a community," from epidemic (adj.); earlier epideme (see epidemy). An Old English noun for this (persisting in Middle English) was man-cwealm.
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overspread (v.)

c. 1200, "to spread throughout, spread over, cover over," from over- + spread (v.). Related: Overspread (past tense); overspreading. Old English had ofersprædan "to overlay, cover," and compare German überspreiten, Dutch overspreiden.

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diachronic (adj.)

1857, "lasting through time," from Greek dia "throughout" (see dia-) + khronos "time" (see chrono-). In linguistics, "concerned with the historical development of a language, historical," by 1927.

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sadness (n.)

early 14c., sadnesse, "seriousness," from sad + -ness. Meaning "sorrowfulness, dejection of mind" is by c. 1500, perhaps c. 1400, but throughout Middle English the word usually referred to "solidness, firmness, thickness, toughness; permanence, continuance; maturity; sanity."

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per- 

word-forming element common in words of French and Latin origin, meaning primarily "through," thus also "throughout; thoroughly; entirely, utterly," from Latin preposition per (see per (prep.)).

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