senile

• adj. 高龄的；老衰的；高龄所致的

sen-,年老，-ile,形容词后缀。

senile (adj.)

1660s, "suited to old age," from French sénile (16c.), from Latin senilis "of old age," from senex (genitive senis) "old, old man," from PIE root *sen- "old" (cognates: Sanskrit sanah "old;" Avestan hana- "old;" Old Persian hanata- "old age, lapse of time;" Armenian hin "old;" Greek enos "old, of last year;" Lithuanian senas "old," senis "an old man;" Gothic sineigs "old" (used only of persons), sinistra "elder, senior;" Old Norse sina "dry standing grass from the previous year;" Old Irish sen, Old Welsh hen "old"). Meaning "weak or infirm from age" is first attested 1848.

1. What exactly goes wrong with those suffering from senile dementia?

那些患老年痴呆症的人到底出了什么问题？

来自柯林斯例句

2. She is suffering from senile dementia.

她患有老年痴呆症。

来自柯林斯例句

3. Don't mind the old lady. She's getting senile.

不要在意这个老太太，她有点儿老糊涂了。

来自柯林斯例句

4. I think she's going senile .

我想她是衰老了。

来自《权威词典》

5. I may be senescent, but I'm not yet senile.

我有点显老了, 但还没有老得不中用.

来自《现代英汉综合大词典》