Strong's 5177 (τυγχάνω)

be, chance, enjoy, little, obtain, X refresh…self, + special

akin to the base of G5088 (τίκτω) through the idea of effecting; properly, to affect; or (specially), to hit or light upon (as a mark to be reached), i.e. (transitively) to attain or secure an object or end, or (intransitively) to happen (as if meeting with); but in the latter application only impersonal (with G1487 (εἰ)), i.e. perchance; or (present participle) as adjective, usual (as if commonly met with, with G3756 (οὐ), extraordinary), neuter (as adverb) perhaps; or (with another verb) as adverb, by accident (as it were)

probably for an obsolete (for which the middle voice of another alternate (to make ready or bring to pass) is used in certain tenses;