Thoroughly soaked, saturated, or waterlogged; drenched or wet through.
From the past participle of 'besod,' which combines 'be-' with 'sod' (to soak). The '-en' ending is a common way to form adjectives in English, as in 'golden' or 'wooden.'
Shakespeare used 'besodden' to describe drunkenness as well as being soaked in water—the word's flexibility made it perfect for describing both the physical and moral state of his intoxicated characters.
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