non-standard pronunciation; dialect
Refers to regional or non-standard speech sounds. Archaic/literary term; modern Japanese prefers 方言 or なまり for dialect, and 訛り for accent.
mistaken rumor; baseless gossip
Archaic/literary term for unfounded talk or false rumor. In modern Japanese, 流言 or デマ are more common.
訛言 could also refer to baseless rumors.
In old documents, the word 訛言 is used to refer to regional pronunciations.
Compound of 訛 (ka, 'accent, dialect') and 言 (gen, 'word, speech'). The exact historical derivation is uncertain; the spelling is conventionally associated with non-standard speech and, by extension, unreliable talk.