British variant spelling of cosseted; past tense of cosset (treated with excessive care and indulgence).
From cosset + -ted (British past tense, doubling the final consonant). British spelling doubles the 's' before adding -ed.
The British spelling 'cossetted' with double-t shows how British English often doubles consonants before adding suffixes (like 'travelled' vs American 'traveled'), a legacy of Norman influence on English orthography.
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