köken: 띄운 (ttuiun, “floating”) + 금(金) (geum, “gold, money”) + 없다 (eopda, “without, nothing”). 뜬금 (tteun'geum) was originally a term to describe a price or cost that was not fixed, and varies depending on the place and market situation.
unconnectedly, unrelatedly, disconnectedly, irrelatively, irrelevantly, neither here nor there (in a manner that is devoid of logic and unconnected to the previous statement)
ill-suited, inapposite, inappropriate, incongruous, inopportune, irrelevant, misplaced, out of place (not suitable for a particular situation or purpose) · inopportune, untimely (not suitable for a particular moment)
by chance, by accident, at random · without design, intent, or purpose · casually, fortuitously, rashly, heedlessly, thoughtlessly, inconsiderately, indiscreetly, idly
köken: From Proto-Italic *temezi (“in darkness, blindly”), a fossilised locative form of Proto-Indo-European *témHos (“darkness”), from *temH- (“dark”). Cognate with Sanskrit तमस् (támas), Persian تم (tam), Latin tenebrae (“darkness”). Compare this form – here simply adverbial – with the history of the Latin present active infinitive; see -ere.