N-G-D – ‘opposing’

The root נג is applied to every kind of light reflected like a mirror. Thence the ideas of manifestation and opposition, of object presented and put in juxtaposition, which is found in the word נגד, wherein the root is rendered still more expressive by the addition of the sign ד. (The Hebraic Tongue Restored, Fabré d’Olivet, p. 86)

5046. nagad, naw-gad´; a primitive root; properly, to front, i.e. stand boldly out opposite; by implication (causatively), to manifest; figuratively, to announce (always by word of mouth to one present); specifically, to expose, predict, explain, praise…

5048.  neged, neh´-ghed; from 5046; a front, i.e. part opposite; specifically a counterpart, or mate; usually (adverbial, especially with preposition) over against or before: