Ted

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Middle English: from Old Norse tethja ‘spread manure’ (past tense tadda ), related to tad ‘dung’.

wiktionary

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From a pet form of Edward, in reference to Edwardian styles affected by youths.

From a possible Old English *teddan, from Proto-Germanic *tadjaną(“to strew, scatter”).

etymonline

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ted (v.)

"to spread" (new-mown grass for drying), c. 1300, from an unrecorded Old English *teddan or from a Scandinavian source akin to Old Norse teðja "to spread manure." Related to German verzetteln "to scatter, squander." Related: Tedding; tedder.