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Webster 1913 Edition

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Adj.

[Gr.

ἐννέα

nine.]

Occurring once in every nine times, days, years, etc.; every ninth.

Enneatical day

every ninth day of a disease.

–

Enneatical year

every ninth year of a man’s life.

Adj.

[Gr. nine.] Enneatical days, are every ninth day of a disease. Enneatical years, are every ninth year of a man's life.

enneatical ‎(not comparable)