(third-person singular simple present atrens, present participle atrenning, simple past and past participle atrenned)
From Middle English atrennen (“to run or flee out”), equivalent to at- + run. Compare German entrennen, English atrin.
"atren." YourDictionary, n.d. Web. 09 June 2018. <http://www.yourdictionary.com/atren>.
atren. (n.d.). Retrieved June 09th, 2018, from http://www.yourdictionary.com/atren