朽

颓朽

tuí xiǔ

decaying

三不朽

sān bù xiǔ

the three imperishables, three ways to distinguish oneself that aren't forgotten by history: through one's virtue 立德[li4 de2], one's service 立功[li4 gong1] and one's writings 立言[li4 yan2] (from the Zuo Zhuan 左傳|左传[Zuo3 Zhuan4])

不朽

bù xiǔ

to last forever; eternal; enduring

朽坏

xiǔ huài

rotten

朽木

xiǔ mù

rotten wood

朽木不可雕

xiǔ mù bù kě diāo

lit. rotten wood cannot be carved (idiom)

朽烂

xiǔ làn

rotten

朽蠹

xiǔ dù

to decay and be eaten by worms etc

化腐朽为神奇

huà fǔ xiǔ wéi shén qí

lit. to change something rotten into something magical (idiom)

枯朽

kū xiǔ

withered and rotten

永垂不朽

yǒng chuí bù xiǔ

eternal glory

老朽

lǎo xiǔ

decrepit and behind the times; old; useless