Lexical Definition

‎פְּתִי‎ pᵉthîy (peth-ee') simple H:N
or פֶּתִי pethîy (peh'-thee); or פְּתָאִי pᵉthâʼîy (peth-aw-ee'); from ‎פָּתָה‎

foolish, simple(-icity, one).

n f
1) simplicity, naivete
adj
2) simple, foolish, open-minded

See Greek: ἄκακος · ἀφροσύνη · ἄφρων · δικαιοσύνη · νήπιος

Brown-Driver-Briggs

‎פֶּ֫תִי‎ [for ‎פָּתַי‎ Lag BN 52 BaZMG xlii (1888), 353; NB 320] adjective simple, possibly as open-minded; — ‎פֶּ֫תִי‎ Prov 9:4 +, ‎פֶּ֑תִי‎ Ps 19:8* +; plural ‎פְּתָאיִם‎ (Ges«GKC:93x»§ 93x) Ps 116:6 + 6 t. Proverbs; ‎פְּתָיִים‎ Ps 119:130; Prov 22:3 ‎פְּתָיִם‎ Prov 1:22; Prov 1:32simple, as substantive concrete: open to the instruction of wisdom or folly, Prov 9:4; Prov 9:16 believing every word Prov 14:15 lacking ‎עָרְמָה‎ Prov 1:14; Prov 8:5; Prov 19:25 needing ‎בין‎ Ps 119:130, ‎חכמה‎ Ps 19:8*; Prov 21:11 in good sense, ‎שׁמר‎ ‎׳‎‎פתאים י‎ Ps 116:8 ‎׳‎‎י‎ preserveth ths simple-minded; but usually tendency to bad sense; ‎פתאים‎ love ‎פתי‎ Prov 1:22 inherit ‎אִוֶּלֶת‎ Prov 14:18, are easily enticed, misled and go back Prov 1:32; Prov 7:7; Prov 9:6; Prov 22:3 = Prov 27:12 they need atonement Ezek 45:20 (|| ‎שׁגה‎).

[‎פְּתִי‎] noun feminine simplicity (i.e.lack of wisdom), ‎דְַמָֿתַי פְּתָיִם תְּאֵהֲבופֶּֿ֑תִי‎ Prov 1:22.

Brown-Driver-Briggs References

Book Refs
Psalms 19:8* · 116:6 · 116:8 · 119:130
Proverbs 1:14 · 1:22 · 1:32 · 7:7 · 8:5 · 9:4 · 9:6 · 9:16 · 14:15 · 14:18 · 19:25 · 21:11 · 22:3 · 27:12
Ezekiel 45:20