前缀abs-为ab-变体，离开。词根trud-，推，挤，见extrude, 向外推。-s (trud- => trus-), 过去分词格。即推开的，引申词义想不出来的，深奥的，难解的。
- abstruse:  It is not clear whether English borrowed abstruse from French abstrus(e) or directly from Latin abstrūsus, but the ultimate source is the Latin form. It is the past participle of the verb abstrūdere, literally ‘thrust’ (trūdere) ‘away’ (ab). (Trūdere contributed other derivatives to English, including extrude and intrude, and it is related to threat.) The original, literal meaning of abstruse was ‘concealed’, but the metaphorical ‘obscure’ is just as old in English.
- abstruse (adj.)
- 1590s, from Middle French abstrus (16c.) or directly from Latin abstrusus "hidden, concealed, secret," past participle of abstrudere "conceal," literally "to thrust away," from ab- "away" (see ab-) + trudere "to thrust, push" (see extrusion). Related: Abstrusely; abstruseness.
- 1. The involved and abstruse passage makes several interpretations possible.
- 2. Einstein's theory of relativity is very abstruse.
- 3. Without entering into an abstruse point of divinity , one thing is plain.
- 且不谈深奥的教义, 有一点是明明白白的.
- 4. Your statement is a bit too abstruse.
- 5. What is the good of a husband who can make abstruse mathematical calculations?
[ abstruse 造句 ]