Lexical Definition

‎πηλίκος‎ pēlíkos (pay-lee'-kos) how great G:A
a quantitative form (the feminine) of the base of ‎πού‎

how great (large).

Usage: 3 forms in 4 verses
Form Translated As     In Verse(s)
πηλίκοσ how great Heb.7.4
πηλίκον how great LXX.Zech.2.2LXX.Zech.2.2
πηλίκοισ in how large Gal.6.11

Abbott-Smith

πηλίκος, -η, -ον, [in LXX: Za 2:2* (6*) (כַּמָּה), IV Mac 15:22*;]
interrog., how large, how great? (prop., of magnitude, as πόσος of quantity): in exclamations, = ἡλίκος (v. Bl., § 51, 4), Ga 6:11; of personal greatness, He 7:4.†

Abbott-Smith References

Book Refs
Zechariah 2:2* · 2:6*
Galatians 6:11
Hebrews 7:4

Liddell-Scott-Jones

πηλίκος-ος [], η, ον,

interrogative correlative to τηλίκος, ἡλίκος, how great or large? πηλίκοςη τις ἔσται γραμμή; [Refs 5th c.BC+]; πηλίκοςον τινὰ οἴεσθε μέγεθο; [Refs 4th c.BC+]; after τηλικοῦτος, [Refs 4th c.BC+]; πόσα καὶ πηλίκοςα of what number and magnitude, [πηλίκοςος">Refs 2nd c.BC+]; quantulus? [Refs 2nd c.AD+]; τὸ π. magnitude, opposed to τὸ ποσόν (quantity), [πηλίκοςου καὶ ποσοῦ 5th-6th c.AD: Damascius Philosophus “de Principiis” 371 ">Refs 2nd c.AD+]. adverb -κως [Refs]

__II of what age, π. ἦσθ᾽ ὅθ᾽ Μῆδος ἀφίκετ; [Refs 6th c.BC+]
__II.2 indefinite, of a certain age, [Refs 4th c.BC+]: comparative -ώτερος, falsa lectio for{ἀπηλικέστερος}, [Refs 2nd c.AD+]