相そう続ぞく人にん

そ

う

ぞ

く

に

ん

Meanings

Legal and general term for a person who inherits property, rights, or obligations. 相続人 is neutral and commonly used in inheritance contexts.

嫡ちゃく子し
相続人 is the general legal term for an heir under inheritance law, while 嫡子 specifically means the legitimate child recognized as principal heir.
跡あと継つぎN1
相続人 is a strict legal term for who inherits property or assets under inheritance law, whereas 跡継ぎ focuses on taking over a family role or business rather than legal entitlement.
嗣し
相続人 is the legal term for a person who inherits property or rights, whereas 嗣 focuses on succession of a position or family line rather than legal inheritance.

Compound of 相続 (inheritance) + 人 (person). The exact historical derivation is straightforward; the word is a standard Sino-Japanese legal term.