ἐπέρεισμα
ἐπέρεισμα, support, foundation
ἐπέρ-εισμα, ατος, τό,
- support, foundation, τὰ μαθηματικὰ ἐπὶ ταῖς ἰδέαις ἔχειν τὸ ἐ. Iamb. Comm.Math. 8.