oilyWiktionary 原文中文来自 ECDICTadj.油的，油滑的，油嘴的构词拆分oil词根/词干+-y后缀Added to nouns and adjectives to form adjectives meaning “having the quality of”, either “involving the referent” or “analogous to it”. · Added to verbs to form adjectives meaning "inclined to".演变路径（由近及远）英语继承自 ←中古英语 oylei词源说明From Middle English oylei, equivalent to oil + -y. Compare German ölig (“oily”), Swedish oljig (“oily”).释义（英文）形容词 AdjectiveCovered with or containing oil.Resembling oil.(figuratively) Excessively friendly or polite but insincere.名词 NounA marble with an oily lustre.(in the plural, informal) Oilskins. (waterproof garment)