Have a hard time finding a suitable definition for "modo" in the following passage from LLPSI (p. 234):
Mercātor: "Quid ergō faciam? Ipse dē nāve saliam, an in eādem nāve maneam vōbīscum?" Vir ita perturbātus est ut sē interroget, utrum in mare saliat an in nāve remaneat.
"Salī modo!" inquit gubernātor, "Nēmō nostrum tē prohibēbit. At certē nōn tam fēlīx eris quam Arīōn, quī delphīnō servātus est."
Mercātor: "Quid ergō faciam? Ipse dē nāve saliam, an in eādem nāve maneam vōbīscum?" Vir ita perturbātus est ut sē interroget, utrum in mare saliat an in nāve remaneat.
"Salī modo!" inquit gubernātor, "Nēmō nostrum tē prohibēbit. At certē nōn tam fēlīx eris quam Arīōn, quī delphīnō servātus est."