περίμεν᾽, ὡς ἐξερχεται (Ar., Thes., 71) here the context requires the meaning ‘till’ for ὡς, which is called falsa lectio in LS. What does that mean?Does it mean that there is an error in the manuscripts?
it may also mean ‘since’ here: wait, since he is coming out.
It means a “false reading,” in the sense that the manuscripts are wrong, corrupted in the course of transmission.