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Etymology tree Proto-Indo-European *só, *to- Proto-Germanic *sa, *þas Proto-Germanic *-si Proto-Germanic *þassi Proto-West Germanic *þassi Proto-Anglo-Frisian *þēs Old English þes Middle English þis English this From Middle English þis, this, from Old English þis (neuter demonstrative), from the North Sea Germanic base *þa- (“that”), from Proto-Germanic *þat, from Proto-Indo-European *tód, extended form of demonstrative base *to-; + North-West Germanic definitive suffix *-s, from Proto-Indo-European *só (“this, that”). Cognate with Scots this (“this”), Saterland Frisian dusse (“this”), West Frisian dizze (“this”), German dies, dieses (“this”), Old Gutnish þissi (“this”).