Abbott-Smith Manual Greek Lexicon
φροντίζω (G5431)
1 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.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain