obsequious /əbˈsiːkwiəs 
/ ▸ adjective obedient or attentive to an excessive or servile degree: they were served by obsequious waiters.
– DERIVATIVES obsequiously /əbˈsiːkwiəsli / adverb obsequiousness /əbˈsiːkwiəsnəs / noun – ORIGIN late 15th century (not depreciatory in sense in early use): from Latin obsequiosus, from obsequium ‘compliance’, from obsequi ‘follow, comply with’.
EnglishOxford Dictionary of English
