Толковый словарь английского языка - auxiliary

I. adjective see: eke Date: 15th century 1. offering or providing help, functioning in a subsidiary capacity , accompanying another verb and typically expressing person, number, mood, or tense, 3. supplementary, constituting a reserve , equipped with sails and a supplementary inboard engine , II. noun (plural -ries) Date: 1567 1. an ~ person, group, or device, a Roman Catholic titular bishop assisting a diocesan bishop and not having the right of succession, an ~ boat or ship, an ~ verb