Core sense — he made him a Magian, he taught him the Magian religiongenerated
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He made him a مَجُوسِىّ [or Magian]; he taught him the religion of the مَجُوس.
Core sense — he became a Magian, he adopted the religion of the Magiansgenerated
He became a مَجُوسِىّ [or Magian]; he adopted the religion of the مَجُوس.
Core sense — the Magians, a certain nation; a Magiangenerated
It is a Persian word.
Aboo-'Alee: المَجُوسُ takes the article ال only because it is used as a plural, standing for المَجُوسِيُّونَ; otherwise مجوس could not take the article, being determinate in itself. It is also feminine, so in inflection it is like قَبِيلَة, not حَىّ, and the same holds for يَهُودُ.
That is, each of these two words is imperfectly declinable because by them is meant the قبيلة [so called, so that it is a feminine proper name] — art. هود.
Az: مَجُوسُ was a man with small ears, who instituted a religion for the مَجُوس and invited [them] to it.
He was not Zarádusht [or Zoroaster] the Persian, as some say, because Zarádusht came after Abraham, while the religion of the مجوس is [more] ancient; but Zarádusht revived it, made it known, and added to it.
The name is arabicized, from مَنْجَ كُوش or ميج كوش or مِيخَ كُوش (written differently in different copies of the K, the first being the reading in the TA and the last that in the CK); the last of these words means “the ear” [in Persian, but written with ك], and the first means “short.”
[Written with tanwīn in two copies of the S and in the CK, but afterwards shown in the S to be imperfectly declinable, and expressly said to be so in art. هود.]
This is a relative noun from المَجُوسِيَّةُ, and is an adjective applied to a man; [the plural form is rather a collective generic noun, and this the ism waḥda.]
Core sense — the religion of the Magiansgenerated
The religion of the مَجُوس [or Magians].
Mohammad said that the قَدَرِيَّة were the مَجُوس of his people, because the Magians believed in two principles, light and darkness, ascribing good to light and evil to darkness; and in the same way the قدريّة ascribed good to God, and evil to man and the devil.