疾とく疾とくMeanings1adverbquickly; swiftlyarchaicArchaic adverb; in modern Japanese, 早く or 速く are used instead. Found in classical literature or poetic contexts.See also: 疾く疾とく疾とく参まいれと、主しゅ君くんが仰おおせられた。The lord commanded, 'Come quickly.'