Usage: 2 forms in 2 verses
Form Translated As     In Verse(s)
εννοηθώσι should reflect on LXX.Isa.41.20
εννοήθητι reflect LXX.Dan.9.23

Liddell-Scott-Jones

ἐννοέω (ennoeō) to reflect on G:V

ἐννοέω-έω,

Ionic dialect aorist 1 participle ἐννώσας [Refs 5th c.BC+]: perfect ἐννένωκα [Refs]:—Attic dialect also deponent verb ἐννοέωοῦμαι, with aorist 1 passive ἐνενοήθην:—have in one's thoughts, consider, reflect, . ὅτι.. [Refs]; . ὡς.. [Refs 5th c.BC+]; εἴτε.. [Refs]; . μή.. take thought, be anxious lest.., [ἐννοέωούμενοι μὴ οὐκ ἔχοιεν [prev. work] 3.5.3 ">Refs 5th c.BC+]; ἐννοέωούμενοι (variant{-οῦντες}) οἷα πεπονθὼς [ἐννοέωουμένη πέρι 5th c.BC: Euripides Tragicus “Medea” 925. ">Refs 5th c.BC+]

__2 with accusative, reflect upon, consider, τὰ λεγόμενα [ἐννοέωοῦμαί πως ἐγώ 5th c.BC: Eupolis Comicus 11.6 4th c.BC: Demosthenes Orator ">Refs 5th c.BC+]; . τὸ γιγνόμενον, ὅτι.. [ἐννοέωεῖσθ᾽, ὅταν πορθῆτε γαῖαν, εὐσεβεῖν [prev. author] “Ph.” 1440 ">Refs 5th c.BC+]; ταῦτ᾽ ἐννοέωήσασ᾽ (variant ἐννοέωηθεῖσ᾽) [Refs 5th c.BC+]
__3 with genitive, take thought for, μητρὸς οὐδὲν ἐννοέωούμενοι κακῶν [Refs 5th c.BC+]; ἐνενόησεν αὐτῶν καὶ ὡς.. he took note of them that.., [Refs 5th c.BC+]; notice, ἐννενόηκας τῶν λεγομένων πονηρῶν, σοφῶν δέ, ὡς.. [Refs 5th c.BC+]; ἐννενόηκά σου λέγοντος ὅτι.. [Refs]; ἔκ τινος ἐννοέωεῖσθαι draw conclusions from.., [Refs]
__II understand, εἰ σὺ μὴ τόδ᾽ ἐννοέωεῖς, ἐγὼ λέγω σοι [ἐννοέωῶ 5th c.BC: Sophocles Tragicus “Oedipus Tyrannus” 559, “Ph.” 28: with ">Refs 5th c.BC+]participle, ἐννοέωοῦμαι φαῡλος οὖσα E [Refs]
__III intend to do, with infinitive, ἐννοέωεῖς ἡμᾶς προδοῦναι [LXX+5th c.BC+]
__IV think of, invent, [Refs 5th c.BC+]
__V form a notion of, τι [Refs]; suppose, δ᾽ ὑμεῖς ἐννοέωεῖτε, ὅτι.. [Refs 5th c.BC+]
__VI of words, mean, signify, τί σοι ἄλλο ἐννοέωεῖ.. τὸ ῥῆμ; [Refs 5th c.BC+] codices ἐννό-ημα, ατος, τό, notion, concept, [LXX+4th c.BC+]; object of thought, [Refs 4th c.BC+]