Comparative form of bare; more exposed, uncovered, or lacking in something than something else.
From Old English 'bare,' with the comparative suffix '-er' added; this is the standard way English forms comparatives for one-syllable adjectives.
The word 'barer' is interesting because 'bare' already sounds bare—it's a short, simple word—so adding '-er' to make it comparative actually makes the sound feel even more stripped down.
Complete word intelligence in one call. Free tier — 50 lookups/day.