動詞 preen:

1. clean with one's bill
   同義詞：plume
2. pride or congratulate (oneself) for an achievement
   同義詞：congratulate
3. dress or groom with elaborate care
   同義詞：primp, plume, dress

1. She preened herself upon her beauty.
   她為自已的美貌感到自滿。
2. He's always preening himself on his success.
   他總是對自己的成功沾沾自喜。

preen

v.（動詞）
preened,preen.ing,preens
v.tr.（及物動詞）

To smooth or clean (feathers) with the beak or bill.
用嘴整理：用嘴或喙平整或清理（羽毛）
To trim or clean (fur) with the tongue, as cats do.
用舌頭清理：象貓一樣用舌頭修飾或清理（皮毛）
To dress or groom (oneself) with elaborate care; primp.
精心打扮：精心地打扮或修飾（自己）；過分地打扮
To take pride or satisfaction in (oneself); gloat.
自滿：自滿或以己為傲；心滿意足地注視
v.intr.（不及物動詞）
To dress up; primp.
穿戴打扮；過分地打扮
To swell with pride; gloat or exult.
自負(fù)：驕傲自大；心滿意足或狂喜

來源：
Middle English proinen, preinen
中古英語 proinen, preinen
blend of Old French proignier [to prune] * see prune 2
混合了 古法語 proignier [修剪] *參見 prune2
Old French poroindre [to anoint before] por- [before] from Latin prô- * see pro- oindre [to anoint] from Latin unguere
古法語 poroindre [在…前涂油] por- [在…前] 源自 拉丁語 prô- *參見 pro- oindre [涂油] 源自 拉丁語 unguere

【引伸】
preen.er
n.（名詞）