Dialectal or nonstandard past tense of drown, used in some regional varieties of English.
From 'drown' with analogical past tense formation, similar to how 'burn' became 'burnt' in some dialects. Represents a natural language change pattern in folk speech.
Words like 'drownd' show how language naturally changes and varies—people extend regular patterns (like adding -d to make past tense) to irregular verbs, and if enough speakers do it, it becomes a dialect feature!
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