(prt) (arch) (See を) marks object of action, etc. (also adds emphasis)[edict]
追う
おう
(v5u,vt) (1) to chase; to run after; to pursue; (2) to follow (i.e. a set order, a trend); (3) to drive out; to oust; to expel; (4) to drive (i.e. a herd); (5) (in passive voice) to be pressed (for time, etc.); (P)[edict]