penetrable
UK[ˈpɛnɪtrəbl̩]US[ˈpɛnətrəbəl]
adj
Allowing things to pass through or into it; not solid or sealed.
adj
Able to be understood or figured out.
Morpheme Breakdown
penetr
able
penetr
to go into
able
capable of
Etymology
The word "penetrable" is built from the Latin verb penetrare, meaning "to enter, to go into," which itself derives from penitus, signifying "inward" or "deep within." The suffix -able, of Latin origin, attaches to verbs to create adjectives indicating a capacity or susceptibility. Thus, the literal construction "capable of being entered" directly informs its modern meanings. It first described physical substances that could be pierced or entered, and later extended metaphorically to describe ideas or mysteries that can be comprehended or solved.
Analysis
Structure: penetr (to go into) + able (capable of)
- penetr: From Latin penetrare (to go into, enter), from penitus (inward, deep within). Serves as the verb root.
- able: From Latin -abilis, a suffix forming adjectives meaning "capable of, fit for, tending to". Serves as an adjectival suffix.
Examples
The fortress was thought to be impenetrable, but a secret tunnel made it penetrable after all.
His argument was so convoluted that it was barely penetrable to the average reader.
The dense fog was barely penetrable by the car's headlights.