questionable

The word 'questionable' is built upon the Latin root quaerere, meaning "to seek, to ask," which evolved into the noun quaestio (an inquiry). This entered English via Old French as 'question,' carrying the sense of an interrogation or a matter of doubt. The suffix '-able,' of Latin origin, attaches to verbs to form adjectives indicating a propensity or fitness for the action. Therefore, the literal construction "capable of being questioned" logically evolved into the modern abstract meanings of "doubtful" or "of dubious morality," as something open to inquiry is inherently not settled or certain.

Structure: question (to ask, to doubt) + able (capable of, tending to) - question: From Latin quaestio (a seeking, inquiry), via Old French. Functions as the core semantic root meaning "to ask, to inquire, to doubt." - able: From Latin -abilis, a suffix forming adjectives meaning "capable of, tending to, or worthy of." Functions as a derivational suffix.