These
来自Big Physics
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Old English, neuter of thes, of West Germanic origin; related to that and the.
wiktionary
From Middle English þes, from Old English þas, from Proto-West Germanic *þes-, a form of Proto-Germanic *sa(“that”), from Proto-Indo-European *só. Compare with German diese.
etymonline
these (pron.)
Old English þæs, variant of þas (which became those and took the role of plural of that), nominative and accusative plural of þes, þeos, þis "this" (see this). Differentiation of these and those is from late 13c. OED begins its long entry with the warning, "This word has a complicated history."
