Langort is a position in the German School of historical fencing.
[1] In modern literature, sometimes it is identified with the position vom tage in the system of Johannes Liechtenauer, according to Ms. Nürnberger Handschrift GNM 3227a.
Also, vom tage is a very active position that gives you the opportunity to start a variety of attacks, while "Langort" is highly defensive and passive, mostly used to force a contrahent with shorter blade to keep distance.
The only real possibility to attack while standing in this position is by running into a highly incautious opponent.
Otherwise standing in this position means to force your contrahent to either attack your blade or to run into the sword, which can create nearly insurmountable situations in combat.