Lexical Definition

‎τελεσφορέω‎ telesphoréō (tel-es-for-eh'-o) to mature ^G:V
from a compound of ‎τέλος‎ and ‎φέρω‎

bring fruit to perfection.

• to be a bearer to completion (maturity), i.e. to ripen fruit (figuratively)

Abbott-Smith

** τελεσφορέω, -ῶ (< τέλος, φέρω) [in LXX: IV Mac 13:20 * ;]
(a) of plants, to bring fruit to perfection (Theophr.): Lk 8:14
(b) of females, to bear perfect offspring (Artemid.; IV Mac, l.c.).†

Abbott-Smith References

Liddell-Scott-Jones

τελεσφορέω-έω,

bring fruit to perfection, [NT+4th c.BC+]:—passive, τελεσφορέωουμένων καρπῶν [Refs 1st c.BC+]

__2 of young women, bear perfect offspring, [Refs 2nd c.AD+]; τ. καὶ μὴ ἀποβάλλειν τὸ ἔμβρυον [Refs 1st c.AD+]:—passive, of the offspring, [Refs 1st c.AD+]
__3 generally, bring to a head, ἔαρ ἐς κορυφὴν τ. [νοῦσον] [Refs 1st c.BC+] O.:—passive, to be brought to perfection, [Refs 3rd c.AD+]
__II pay toll or custom, [Refs 5th c.BC+]
__III to be a τελεσφόφος[Refs]

_{LSJ Scripture Refs: Luke.8.14}