Lexical Definition

‎ἐντυγχάνω‎ entynchánō (en-toong-khan'-o) to call on G:V
from ‎ἐν‎ and ‎τυγχάνω‎

deal with, make intercession.

Usage: 3 forms in 5 verses
Form Translated As     In Verse(s)
ἐντυγχάνειν to intercede Heb.7.25
ἐντυγχάνει He intercedes Rom.8.27
he pleads Rom.11.2
is interceding Rom.8.34
ἐνέτυχόν they pleaded Acts.25.24

Abbott-Smith

ἐν-τυγχάνω [in LXX: Da TH 6:12*, [13](/btb/LXX/27%20-%20Daniel/6/LXX.Dan.6.12.html)*] (קֶרֶב) Wi 8:20 16:28, II Mac 2:25 4:36 6:12 15:39, III Mac 6:37; seq. κατά, I Mac 8:32 10:61, 63, 64 11:25 * ;]
1. to fall in with.
2. to meet with in order to converse.
3. to petition, make petition: c. dat. pers., seq. ὑπέρ c. gen. pers., Ac 25:24 (cf. Field, Notes, 140), He 7:25, Ro 8:27, 34 (θεῷ, not expressed); seq. κατά, against: Ro 11:2 (cf. ἔντευξις, ὑπερ-εντυγχάνω).†

Abbott-Smith References

Book Refs
Daniel 6:12* · 6:13*
Acts 25:24
Romans 8:27 · 8:34 · 11:2
Hebrews 7:25

Liddell-Scott-Jones

ἐντυγχάνω,

future -τεύξομαι: aorist 2 ἐνέτῠχον: perfect ἐντετύχηκα [Refs 1st c.BC+]: aorist 1 passive ἐνετεύχθην [Refs 1st c.AD+]:—light upon, fall in with, meet with, with dative person, [Refs 5th c.BC+]; ὀλίγοι τινὲς ὧν ἐντετύχηκα (i.e. τούτων οἷς..) [Refs 5th c.BC+]

__2 with dative of things, κακοῖς ., ={τυγχάνω ὢν ἐν κακοῖς}, [Refs 5th c.BC+]; οὑντυγχάνων (i.e. τοῖς πράγμασιν) conjecture Valck. in [Refs 5th c.BC+]; . τῷ νώτῳ, of the crocodile, [Refs 5th c.BC+]; . τοῖς.. τοξεύμασι he who fell in their way, [Refs 5th c.BC+]; of obstacles, . τάφροις [Refs 5th c.BC+]
__3 absolutely, [Refs 5th c.BC+]chance persons, [Refs 5th c.BC+]
__3.b ἐν δὲ μηνὸς πρῶτον τύχεν ἆμαρ it chanced to be.., [Refs 5th c.BC+]
__4 obtain an audience or interview, [Refs 5th c.BC+]:—passive, to be appealed to, consulted, περί τινων [Refs 1st c.AD+]
__5 of thunder, strike, κεραυνὸς οἷς ἂν ἐντύχῃ [Refs 5th c.BC+]; but hardly so in [Refs 5th c.BC+]
__6 rarely with genitive, λελυμένης τῆς γεφύρης ἐντυχόντες having found the bridge broken up, [Refs 5th c.BC+]; τῶν παρ᾽ ἡμῖν ἐντυχὼν Ἀσκληπιδῶν having falling in with them, [Refs 5th c.BC+]
__II converse with, talk to, τινί [Refs 5th c.BC+]
__II.2 have sexual intercourse with, τινί [Refs 1st c.AD+]
__II.3 petition, appeal to, τινὶ περί τινος (masculine) [NT+2nd c.BC+]; ἐντυγχάνων the petitioner, [Refs]; . κατά τινος plead against, [NT+2nd c.BC+]: with infinitive, entreat one to do, [Refs 1st c.BC+]:—passive, ὑπὲρ φυγάδων ἐντευχθείς [Refs]
__III of books, meet with, βιβλίῳ ἀνδρὸς σοφοῦ [Refs 5th c.BC+]; hence, read, [Refs 1st c.AD+]readers, [Refs 2nd c.BC+]

LSJ Scripture Refs: Acts.25.24Rom.11.2