Having qualities somewhat like cork; resembling cork in certain characteristics, or somewhat corky in nature.
From 'cork' + adjectival suffix '-ish' (meaning 'somewhat' or 'having qualities of'). The '-ish' suffix is one of English's most productive, dating back to Old English.
The suffix '-ish' is English's way of being wishy-washy in a precise way—'corkish' means 'kind of like cork but not entirely', which is actually more useful for describing borderline cases than just saying 'corky'.
Complete word intelligence in one call. Free tier — 50 lookups/day.