ἐνίστημι
δρυὸς πεσούσης πᾶς ἀνὴρ ξυλεύεται → when the oak falls, everyone cuts wood | when an oak has fallen, every man gathers wood | on the fall of an oak, every man gathers wood | when an oak has fallen, every man becomes a woodcutter | one takes advantage of somebody who has lost his strength | one takes advantage of somebody who has lost his power | when the tree is fallen, every man goes to it with his hatchet
English (LSJ)
causal in pres., fut.and aor. 1 Act., and aor. 1 Med.:—
A put, place in, ἵππον ἐν λίθοις ἐνιστάναι X.Eq.Mag.1.16; στήλας ἐνίστη ἐς τὰς χώρας Hdt.2.102; εἰς αὐτὴν (sc. τὴν πόλιν) ἡνίοχον ἐνστῆσαι Pl.Plt. 266e; τοὺς ἱπποκόμους εἰς (i.e. amongst) τοὺς ἱππέας ἐ. X.Eq.Mag. 5.6: c. dat., ἱστὸν ἐνεστήσαντο μεσόδμῃ A.R.1.563. 2 in Law, institute an heir, ἐ. κληρονόμους τοὺς υἱούς PMasp.151.75 (vi A. D.). 3 aor. 1 Med., also, begin, ὅσαι τὸ πρᾶγμα τοῦτ' ἐνεστήσαντο Ar.Lys.268; οὐδὲν πώποτε τῶν πραγμάτων ἐνεστήσασθ' ὀρθῶς D.10.21; ὁ τοιοῦτον ἀγῶν' ἐνστησάμενος Id.18.4; ἐ. τὸ πρᾶγμα, Lat. rem instituere, Arist. Pr.951a28; ἀρχὰς τῆς γενέσεως Thphr.HP7.10.4; ὀργὴν καὶ μῖσος πρός τινα ἐνστήσασθαι to begin to show... Plb.1.82.9; πρᾶξιν Plu. Arat.16: c. inf., D.S.14.53. 4 ἐνστήσασθαι τὸ μέγεθος determine the size, Ph.Bel.50.29. B Pass., with aor. 2, pf., and plpf. Act.:—to be set in, stand in, λὁχοις E.Supp.896; ἐν τῷ νηῷ Hdt.2.91: abs., πύλαι ἐνεστᾶσι ἑκατόν Id.1.179, cf. Pl.Ti.50d, etc. 2 enter upon, take possession of, ὁ νικάσας ἐν τὰν οὐσίαν ἐνίσταται τὰν τοῦ ἁλόντος Foed. Delph.Pell. 2B 14. II to be appointed, σοῦ ἐνεστεῶτος βασιλέος Hdt.1.120, cf. 6.59; ἐς ἀρχήν Id.3.68; ἐς τυραννίδας Id.2.147. III to be upon, threaten, c. dat. pers., τοιούτων τοῖσι Σπαρτιήτῃσι ἐνεστεώτων πρηγμάτων Id.1.83; τὸν πόλεμον τὸν ἐνστάντα σοὶ καὶ τῇ πόλει Isoc.5.2; in war, press hard, τινί Plb.3.97.1: abs., begin, [τοῦ θέρους] ἐνισταμένου Thphr.HP9.8.2; ἐνισταμένου τοῦ ἐνιαυτοῦ LXX 3 Ki.12.24; to be at hand, arise, ὁ τότ' ἐνστὰς πόλεμος D.18.89, cf. 139, Plb.1.71.4; τοῦ πολέμου πρὸς Φίλιππον ὑμῖν ἐνεστηκότος Aeschin.2.58: esp. in pf. part., pending, present, μιᾶς ἐνεστώσης δίκης Ar.Nu.779, cf. Is.11.45, D.33.14; ὁ νῦν ἐνεστηκὼς ἀγών Lycurg.7; so οὐδενὸς ἡμῖν ἐνεστῶτος πρὸς αὐτούς PStrassb.91.21 (i B.C.); of Time, instant, present, τοῦ ἐνεστῶτος μηνός Philipp. ap. D.18.157; ἡ ἐνεστῶσα κακία, ἀνάγκη, PPetr.2p.60, 1 Ep.Cor.7.26; κατὰ τὸν ἐ. καιρόν Arist.Rh.1366b23; ἀγαθὸν ἐνεστὼς ἢ μέλλον Stoic.3.94; cf. ἐνεστάναι τὸν πάντα χρόνον ὡς τὸν ἐνιαυτὸν ἐνεστηκέναι λέγομεν Apollod.Stoic.3.260. 2 esp. Gramm., ὁ ἐνεστὼς (sc. χρόνος) the present tense, Stoic.2.48, D.T.638.22, A.D.Pron.58.7, al.; also ἐνεστῶσα συντέλεια the state of completion expressed by the perfect tense, Id.Synt.205.15: also in aor., τοῦ ποτὲ ἐνστάντος when the moment has arrived, Plot.4.3.13; τὰ ἐνεστηκότα πράγματα present circumstances, X.HG2.1.6; so τὰ ἐνεστῶτα Plb.2.26.3. IV stand in the way, resist, block, τοῖς ποιουμένοις Th.8.69; τῇ φυγῇ Plu.Luc.13; τῇ αὐξήσει Id.Rom.25; πρὸς πᾶσάν τινι πολιτείαν Id.Arist.3, cf.Marc.22: abs., stand in the way, Th.3.23; in argument, ἐνέστηκεν ὃ νυνδὴ Κέβης ἔλεγε Pl.Phd.77b; ὁ ἐνεστηκώς the opponent in a lawsuit, SIG45.28 (Halic., v B.C.). 2 in Logic, object, τῷ καθόλου Arist.Top.157b3; πρὸς τὸν ἔξω λόγον Id.APo.76b26: abs., Id.Rh.1402b24,al.; ἐ. ὅτι . . Id.APr.69b6; ὡς . . Id.EN1172b35, A.D. Synt.176.23. 3 of the Roman tribunes, exercise the right of intercessio, veto, Plb.6.16.4, Plu.TG10,al. V of fluids, congeal, freeze, ὕδωρ ἐνεστηκός Thphr.CP5.13.1; become impacted in, ἐνιστάμενον ἐπὶ τὰ τοῦ στομάχου στενά (sc. γάλα) Dsc.Alex.26.