methodus
From LSJ
ἄνω ποταμῶν ἱερῶν χωροῦσι παγαί → the springs of sacred rivers flow upward, backward to their sources flow the streams of holy rivers
Latin > English (Lewis & Short)
mĕthŏdus: and mĕthŏdos, i, f., = μέθοδος,
I a way of teaching, mode of proceeding, method (post-class.), Vitr. 1, 1, 4; Aus. Idyll. 11, 67; Cael. Aur. Tard. 2, 1, 49 (as Greek, Cels. praef. § 91); cf. methodicus.