The superlative form of 'cowy,' meaning most resembling, characteristic of, or related to cows.
From 'cow' + '-iest' (superlative suffix). English adds '-est' to one-syllable adjectives to show the highest degree, so 'cowy' becomes 'cowiest,' similar to 'biggest' from 'big'.
Superlatives show how creatively we can use English suffixes—if something is extremely cow-like, it's the 'cowiest' thing you've ever seen, even though you'll rarely need this word!
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