Lexical Definition

‎θλίβω‎ thlíbō (thlee'-bo) to press on ^G:V
akin to the base of ‎τρίβος‎

afflict, narrow, throng, suffer tribulation, trouble.

• to crowd (literally or figuratively)

Abbott-Smith

θλίβω, [in LXX chiefly (ὁ θλίβων) for צוּר;]
to press: c. acc. pers., Mk 3:9; ὁδὸς τεθλιμμένη, a narrow (compressed) way, Mt 7:14. Metaph. (as freq. in LXX), to oppress, afflict, distress: c. acc. pers., II Th 1:6; pass. (Vg., tribulor, tribulationem patior), II Co 1:6 4:8 7:5, I Th 3:4, II Th 1:7, I Ti 5:10, He 11:37 (cf. ἀπο-, συν-θλίβω).†

Abbott-Smith References

Liddell-Scott-Jones

θλίβω-ω [ῑ],

[Refs 5th c.BC+]future θλίψω (ἀπο-) [Refs 5th c.BC+]: aorist ἔθλιψα [Refs 5th c.BC+]: perfect τέθλῐφα [Refs 4th c.BC+] —middle, future θλίψομαι (see. below):—passive, future θλίβωήσομαι variant in [Refs 2nd c.AD+]: aorist 1 ἐθλίφθην [Refs 5th c.BC+]aorist 2 participle θλίβωείς[Refs 1st c.AD+] (compare subjunctive ἐκφλῐβῇ [Refs 5th c.BC+]: perfect τέθλιμμαι [Refs 4th c.BC+]:— squeeze, chafe, θλίβει τὸν ὄρρον [ὁ θώραξ] [Refs 5th c.BC+]; ὅπου με θλίβει where [the shoe] pinches, [Refs 3rd c.BC+]: absolutely, exercise pressure, [Refs 3rd c.AD+]:—passive, of a person heavy-laden, ὡς θλίβομαι! [Refs 5th c.BC+]:—middle, πολλῇς φλιῇσι παραστὰς θλίψεται (variant{φλίψεται}) ὤμους he will rub his shoulders against many doorposts, of a beggar, [Refs 8th c.BC+]

__II compress, straiten, [Refs 5th c.BC+]; reduce, compress, εἰς τὸ μὴ ὂν τὰ ὄντα θλίβοντες [Refs 4th c.BC+]:—passive, to be compressed, [Refs 5th c.BC+]; θλιβομένα καλύβα a small, close hut, [Refs 3rd c.BC+]; ὁδὸς τεθλιμμένη, opposed to εὐρύχωρος, [NT]; βίος τεθλ. a scanty subsistence, [Refs 1st c.BC+]
__II.2 metaphorically, oppress, afflict, distress, ἀνάγκη ἔθλιψέ τινα [Refs 4th c.BC+]; press hard in battle, [Refs 2nd c.BC+]:— passive, θ. διὰ τὸν πόλεμον [Refs 4th c.BC+]; ὑπὸ τῆς ἀδοξίας [Refs 8th c.BC+]

_{LSJ Scripture Refs: Matt.7.14}