μεγεθ-ύνω · megeth-ynō — LSJ
increase in bulk, magnitude, number, enlarge
increase in bulk, magnitude or number, enlarge, Heliod. ap. Orib. 46.8.13, Iamb. Protr. 21.ιζʹ :—Pass., Cleom. 1.9, Sor. 1.15, 2.37, Iamb. in Nic. p.11 P.: aor. Med. in pass. sense, οὐδʼ ἐμεγεθύνατο μὲν ἐμειώθη δέ Numen. ap. Eus. PE 11.10.
2 acquire magnitude, become quantified, world of magnitudes
Pass., acquire magnitude, become quantified, Plot. 3.6.17, 6.4.1; τὰ μεμεγεθυσμένα the world of magnitudes, Id. 2.4.10, cf. Porph. Sent. 33; μετὰ τὸ μεγεθυνθῆναι τὴν ὕλην Phlp. in de An. 543.34.
II invest with sublimity, to be lofty, sublime
invest with sublimity, τὰ δαιμόνια Longin. 9.5:—Pass., to be lofty or sublime, of style, Id. 13.1.
III lengthen
Gramm., of a vowel, lengthen, οἱ τὸ ο̄ μεγεθύνοντες Sch. E. Ph. 629:—Pass., Trypho ap. A.D. Pron. 65.23, cf. A.D. Adv. 193.23.