noun which may take the genitive case particle 'no', noun
vested; already acquired
Used primarily in fixed compounds like 既得権 (vested rights) or 既得利益 (vested interests); rarely used alone.
There is a strong movement to protect vested rights.
既得利益にしがみつくのは改革の妨げになる。
Clinging to vested interests hinders reform.
vested rights
advanced standing; credit for prior studies
vested interests
Compound of 既 (already) and 得 (acquire). The exact historical derivation is uncertain, but the kanji combination directly conveys 'already acquired'.