STAGNATE Meaning of STAGNATE in English [ stag'neɪt , 'stagneɪt ]■ verb become stagnant.Derivativesstagnation noun OriginC17: from L. stagnat- , stagnare 'settle as a still pool', from stagnum 'pool'. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004