ἐπερ-είδω,
drive against, ἐπέρεισε δὲ Παλλὰς Ἀθήνη [ἔγχος] νείατον ἐς κενεῶνα drove it home, [[ 8th c.BC: Ilias Homerus Epicus “Illiad” 5.856, compare 17.48; ἐπέρεισε δὲ ἶν᾽ ἀπέλεθρον] Refs 8th c.BC+] put vast strength to it, [[ 7.269, 8th c.BC: Odyssea Homerus Epicus “Odyssey” 9.538 ] Refs 8th c.BC+]; thrust a door to, shut it close, [[ 4th c.AD(?): Quintus Smyrnaeus Epicus 12.331; ἐ. γένειόν τινι] Refs 4th c.AD+] lean it upon.., [[ 2nd-3rd c.AD: Aelianus “NA” 5.56: _metaphorically_, ἐ. τὸν νοῦν] Refs 2nd c.AD+] attend to a thing, [[ 2nd c.AD: Apollonius Dyscolus Grammaticus “Synt.” 148.20; τὴν διάνοιαν Plutarchus Biographus et Philosophus [{1-2nd c.AD}] 2.392b ] Refs 1st c.AD+]; ἐ. τῷ φιλεῖν ἐμαυτόν give oneself up to, [[[prev. work] 463c] Refs]; direct, πρὸς τὴν θεὸν τὸν λόγον [[Scholia 5th c.BC: Pindarus Lyricus “N.” 7.1:] Refs 5th c.BC+] —middle, rest in or upon, [[ βαυκάλη ἐπὶ διαγωνίων λίθων ἐπηρεισμένη 2nd c.AD: Soranus Medicus 1.109 ] Refs 2nd c.AD+]: metaphorically, [[ ψυχαὶ -όμεναι πνεύματι 3rd c.AD: Porphyrius Tyrius Philosophus “de Abstinentia - Porphyrii Opuscula” 2.38; οὐσίᾳ 3rd c.AD: Plotinus Philosophus 6.1.3; ἄλλῳ [prev\. author] 5.5.7; ἐπ᾽ ἄλλου 4th c.AD: Iamblichus Philosophus “Comm.in Mathematics texts” 8 ] Refs 3rd c.AD+].
__2 ἐ. τὴν φάλαγγά τινι bring the whole force of the phalanx against, [[ 1st-2nd c.AD: Plutarchus Biographus et Philosophus “Flam.” 8: _absolutely_, ἐ. τοῖς ἀντιτεταγμένοις [prev\. author] “Pyrrh.” 21, compare 2nd c.AD: Arrianus Historicus “Tact.” 16.13:] Refs 1st c.AD+] —middle, [[ 2nd-3rd c.AD: Aelianus “Tact.” 14.5. ] Refs 2nd c.AD+]
__3 middle, λαίφη προτόνοις ἐπερειδομένας staying their sails with ropes, [[ 5th c.BC: Euripides Tragicus “Hec.” 112:] Refs 5th c.BC+] —passive, lean or bear upon, [[ βακτηρίαις Aristophanes Comicus [{5-6th c.BC}] “Ecclesiazusae” 277, compare 5th-6th c.BC: Plato Philosophus “Lg.” 789e: _metaphorically_ ] Refs 6th c.BC+], lean upon, [[ ἡμετέρῃ ἐ. Ἑλλὰς ἐφορμῇ 3rd c.BC: Apollonius Rhodius Epicus 4.204 ] Refs 3rd c.BC+]: absolutely, resist with all one's force, [[ 5th-6th c.BC: Aristophanes Comicus “Ra.” 1102. ] Refs 5th c.BC+]