Lexical Definition

‎φροντίζω‎ phrontízō (fron-tid'-zo) be careful ^G:V
from a derivative of ‎φρήν‎

be careful.

• to exercise thought, i.e. be anxious

Abbott-Smith

φροντίζω (< φροντίς, thought), [in LXX: I Ki 9:5 (דָּאַג), Ps 39 (40):17 (חָשַׁב), al. ;]
to give heed, take thought (in cl. usually absol., c acc., c. gen.), c. inf., Tit 3:8 (v. Bl., § 69, 4; M, Pr., 206 f.).†

Abbott-Smith References

Liddell-Scott-Jones

φροντίζω-ίζω,

future Attic dialect ιῶ [Refs 5th c.BC+]: aorist ἐφρόντισα [Refs 4th c.BC+], etc.: perfect πεφρόντικα [Refs 5th c.BC+] —middle, future φροντίζωιοῦμαι, [Refs 5th c.BC+]:— passive, see infr. IV: (φροντίζωίς):

__I absolutely, consider, reflect, take thought, φροντίζωίζων εὑρίσκω [Refs 5th c.BC+]; give heed, pay attention, [Refs 5th c.BC+]
__I.2 to be thoughtful or anxious, πεφροντίζωικὸς βλέπεις you look careworn, [φροντίζωίζω; 2nd c.AD: Phrynichus Atticista ">Refs 5th c.BC+] Comedy texts 21; τὸ πεφροντίζωικός, as substantive, care, thought, [Refs 1st c.AD+]
__II with an object,
__II.1 with accusative of things, consider, ponder, ἔχθος ἐμόν [φροντίζωίσαι 4th-5th c.BC: Aeschylus Tragicus “Persae” 245 (troch.)">Refs 6th c.BC+]; [ὀνείρατα] [Refs 5th c.BC+].; devise, μηχανήν [Refs] (nisi to be read τοῦτον); ἐκεῖνο δ᾽ οὐ πεφροντίζωίκαμεν, ὅτῳ τρόπῳ.. μνημονεύσομεν [Refs 5th c.BC+]; also directly followed by a relative clause, φ. ἥντιν᾽ [ὁδὸν] ἴω προτέρην [Refs 6th c.BC+]; φ. τί ποτε τοῦτ᾽ ἔστι [Refs]; take thought that.., see to it that, ὅπως.. [Refs 5th c.BC+]; ὡς.. [Refs 2nd c.BC+]: with infinitive, [NT+3rd c.AD+] with subjunctive, φ. μὴ ἄριστον ᾖ [Refs 5th c.BC+]; οὐδὲν φ. εἰ.. [Refs 5th c.BC+]; φ. εἴτε.., εἴτε.. [Refs]: with infinitive, [Refs 1st c.AD+]: with participle, φροντίζωίζεθ᾽ ὡς μαχούμενοι [Refs 5th c.BC+]
__II.2 with genitive, take thought for, give heed to a thing, regard it, mostly with a negative expressed or implied, σοὶ δ᾽ ἔμεθεν μὲν ἀπήχθετο φροντίζωίσδην [φροντίζωίζουσα οὐδέν [prev. author] 4.198; Πενθέως οὐ φροντίζωίσας 5th c.BC: Euripides Tragicus “Bacchae” 637 (troch.); μηδὲν ὅρκου φροντίζωίσῃς 5th-6th c.BC: Aristophanes Comicus “Lysistrata” 915; τῶν οἰκετῶν.. μηδὲν φ. 5th c.BC: Lysias Orator 7.17 ">Refs 7th c.BC+]; μησενὸς ἄλλου φ., πλὴν ὅπως.. [φροντίζωίζουσι 5th-6th c.BC: Plato Philosophus “Respublica” 563d; τὸ παράπαν θεῶν μὴ φ. [prev. author] “Lg.” 701c ">Refs 5th c.BC+]; conversely, τοὺς θεοὺς φ. οὐδὲν τῶν ἀνθρωπίνων[Refs 4th c.BC+]: so with adverbs implying a negative, σμικρὰ φ. ὄχλου [Refs 5th c.BC+]; also without negative, οὗπερ δεῖ μάλιστα φ. [φροντίζωιεῖ 2nd c.BC: Demetrius Lacon Philosophus “Herc.” 1012.26 ">Refs 5th c.BC+]; later, to be steward or bailiff, τῶν ὑπαρχόντων τινός [Refs 2nd c.AD+] to be concerned or anxious about, σφέων αὐτῶν πέρι [φροντίζωίζειν 5th-6th c.BC: Plato Philosophus “Gorgias” 501e; ἀλλ᾽ οὐ τὰ βίου.. δεῖ φροντίζωίσαι 4th-3rd c.BC: Menander Comicus 330; ἡ δ᾽ ἐφρόντισ᾽ οὐδὲ ἕν 5th c.BC: Cratinus Comicus 302 (troch.). ">Refs 5th c.BC+]
__II.2.b later, see to, provide for, furnish, σιτάριον, χρήσιμα, [Refs 2nd c.BC+]; τὰ ἐπιβάλλοντα τῇ ἑορτῇ [Refs 2nd c.AD+]; μηδὲν φροντίζωίσας [Refs 5th c.BC+]
__II.2.c with accusative et participle, οὐ φροντίζωίζει σκληρῶς σε καθήμενον [Refs 5th c.BC+]
__II.3 the object is frequently unexpressed, ἐφρόντιζε ἱστορέων, i. e. inquired carefully, [Refs 5th c.BC+]; οἲ τοὺς φίλους βλάπτοντες οὐ φροντίζωίζετε who though ye do mischief to your friends reck not of it, [Refs 5th c.BC+]; μὴ φροντίζωίσῃς heed it not [Refs 5th c.BC+]; with participle, τοιαῦτα.. γιγνόμενα.. ὁρῶντες οὐδὲν φροντίζωίζετε [Refs 5th c.BC+]
__III middle in signification [φροντίζωιζόμενον μή.. 5th-6th c.BC: Xenophon Historicus “Hiero” 7.10: with \_accusative\_, 5th c.BC: Euripides Tragicus “Iphigenia Taurica” 343 (assuming variant). ">Refs 5th c.BC+]
__IV later in passive, to be an object of thought or care, πεφροντίζωισμένος carefully thought out; λόγος [φροντίζωισμένῃ 2nd-3rd c.AD: Aelianus “De Natura Animalium - Ar.Byzantine Epit.” 7.9 ">Refs 1st c.BC+]; of a ward, ἡ-ομένη ὑπ᾽ ἐμοῦ θυγατριδῆ [Refs 2nd c.AD+]

_{LSJ Scripture Refs: Titus.3.8}