For "spectrum," Maltz said to use the word yutlhegh. This is really a (musical) scale, but the word can also be used for other sorts of ranges. Maltz, of course, never heard of a "Spectrum of Nerdiness," but he said it could be qatru' yutlhegh or venwI' yutlhegh or even ventaHghach yutlhegh. (Of the latter, Maltz said it made sense to him and was grammatical, but he didn't really like it.)

(Festival of the spoken Nerd)