この習慣は絶えて久しい。

この習慣は絶えて久しい。

This custom became extinct a long time ago.

この習慣(しゅうかん)は絶(た)えて久(ひさ)しい。

Kono shūkan wa taete hisashii.

此の (この)

this (something or someone close to the speaker (including the speaker), or ideas expressed by the speaker)

習慣 (しゅうかん)

habit; custom; cultural practice

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

絶える (たえる)

to die out; to peter out; to become extinct; to cease; to be stopped; to be discontinued; to be cut off

久しい (ひさしい)

long; long-continued; old (story)

Readings: シュウ、ジュ、なら.う、なら.い

Meaning: learn

Readings: カン、な.れる、な.らす

Meanings: accustomed, get used to, become experienced

Readings: ゼツ、た.える、た.やす、た.つ

Meanings: discontinue, beyond, sever, cut off, abstain, interrupt, suppress

Readings: キュウ、ク、ひさ.しい

Meanings: long time, old story