Talk:infringe

I was wondering if any guidance could be given in the entry as to the usage of prepositions, particularly contrasting using on and upon against using no preposition, in conjunction with the English verb infringe? — This unsigned comment was added by Vikingr470 (talk • contribs).

Why are dictionaries from 1911 and 1913 used as references in the year 2020? 47.145.168.69 13:21, 19 April 2020 (UTC)