Astrol. Obs. [Arab. al-naṭḥ from naṭaḥa to butt, aim at with the horns.] The first star in the horns of Aries; hence, ‘the first mansion of the moon.’

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c. 1386.  Chaucer, Frankl. T., 553. He knew ful wel how fer Alnath was shoue ffro the heed of thilke fixe Aries aboue.

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