I'm assuming this word is a misprint in Harrius, because it's not in my dictionary, nor in words.exe. Here is its context:
'age vero, puer, audi verba mea,' inquit hirriens. (The fellow speaking is is in a somewhat excited state.)
I'm assuming it's a present participle of either 3rd-i or 4th conjugation. Or it could be horrens, (bristling) but that would require 2 spelling mistakes in the same word. Does anyone have any ideas?