Japanese

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For pronunciation and definitions of えうせつ – see the following entries.
夭折ようせつ
[noun] [from 756] (literary) a premature death, dying while still young
[verb] [from 756] (literary) to die prematurely, to die while still young
(This term, えうせつ (eusetu), is a historical kana spelling of the above term.)

(The following entry is uncreated: 要説.)