Astron. Also 6, 8 fomahant. [Arab. fumu ’l-haut mouth of the fish, Sp. fomahant.] A star of the first magnitude in the constellation Southern Fish (a Piscis Australis).

1

1594.  Blundevil, Exerc., III. i. xxvi. (ed. 7), 334. One bright starre of the first bignesse in his mouth called Fomahant.

2

1704.  J. Harris, Lex. Techn., Fomahant, a Star of the first Magnitude in Aquarius.

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1884.  Browning, Ferishtah, 137.

                    Should I overlook
Fomalhaut and declare some fen-fire king.

4