Core sense — a like, a match; an opponentgenerated
1he is the like of such a one—هُوَ نِدُّ فُلَانٍ
This word, and نَدِيدٌ and نَدِيدَةٌ: a like of a person or thing; or a like of a thing by participation of substance, a more special term than مِثْلٌ, which means “ a like by participation of anything ” (the kádee Zekereeyà); or a thing which does, or may, supply the place of another thing; or a like that is contrary, or opposed, to another thing, opposing it in its circumstances. Synonymous with ضِدٌّ and شِبْهٌ.
Hence the first is applied to an idol; a thing taken as an object of worship instead of the true God.
Plural of the first أَنْدَادٌ; of the second نُدَدَآءُ; of the third نَدَائِدُ.
he is the like of such a one—نَدِيدُهُ
he is the like of such a one—نَديِدَتْهُ
she is the like of such a female—هِىَ نِدُّ فُلَانَةَ
But one does not say نِدُّ فُلَانٍ.
he is my opponent as to the course I would pursue, contending with me for a different course—هُوَ نِدِّى
he is my opponent as to the course I would pursue, contending with me for a different course—نَدِيدِى
Show Lane's original text
and نَدِيدٌ and نَدِيدَةٌ A like (S, L, K) of a person or thing: (L:) or a like of a thing by participation of substance; a more special term than مِثْلٌ , which signifies “ a like by participation of anything: ” (the kádee Zekereeyà, MF:) or a thing which does, or may, supply, the place of another thing: (TA:) or a like that is contrary, or opposed, to another thing; (Msb;) that opposes it ( يُنَحادُّهُ , i. e., يُخَالِفُهُ ,) in its circumstances; (L;) syn. with ضِدٌّ and شِبْهٌ : (Akh:) and hence the first is applied to an idol; a thing taken as an object of worship instead of the true God: (L:) pl. of the first, أَنْدَادٌ ; (L, Msb, K;) and of the second, نُدَدَآءُ ; and of the third, نَدَائِدُ . (K.) You say, هُوَ نِدُّ فُلَانٍ , and نَدِيدُهُ , and نَديِدَتْهُ , He is the like of such a one: (L:) and هِىَ نِدُّ فُلَانَةَ , (ISh, L, K,) She is the like of such a female; (ISh, L;) but not نِدُّ فُلَانٍ . (ISh, L, K.) You also say هُوَ نِدِّى , and نَدِيدِى , meaning He is my opponent with respect to the course that I would pursue, contending with me for a different course. (AHeyth, T, L.) See نَدٌّ .