passable

The word 'passable' is a straightforward combination of the verb 'pass' and the adjectival suffix '-able'. Its core logic is the concept of "capability of being passed". This initially applied very literally to physical routes, such as roads or fords, that were free from obstruction and could be traversed. Over time, this concrete meaning was metaphorically extended to describe abstract qualities, such as the quality of work or performance, that are just good enough to "get through" or be accepted, meeting the minimum threshold without being exceptional.

Structure: pass (to go) + able (capable of) 'pass' originates from the Old French 'passer', meaning "to step, walk, pass", ultimately from the Latin 'passus', meaning "a step, pace". In this word, it functions as the core verb root. 'able' is a suffix of English origin, from Old French '-able' and Latin '-abilis', meaning "capable of, fit for". It forms adjectives meaning "able to be [verb]ed".