Lexical Definition

‎καίπερ‎ kaíper (kah'-ee-per) although G:CONJ
from ‎καί‎ and ‎περ‎

and yet, although.

Usage: 1 form in 5 verses
Form Translated As     In Verse(s)
καίπερ although Heb.12.17
though Phil.3.4 • Heb.5.8 • Heb.7.5 • 2Pet.1.12

Abbott-Smith

καίπερ, concessive particle, [in LXX: Pr 6:8, Wi 11:9, Jh 1:13, II-IV Mac11*;]
although: c. ptcp., Phl 3:4, He 5:8 7:5 12:17, II Pe 1:12.†

Abbott-Smith References

Book Refs
Proverbs 6:8
Jonah 1:13
Philippians 3:4
Hebrews 5:8 · 7:5 · 12:17
2 Peter 1:12

Liddell-Scott-Jones

καίπερ,

in [Refs 8th c.BC+] always with a word between (except καί περ πολλὰ παθόντα [Refs 8th c.BC+]; but one word in [Refs 5th c.BC+]

__I even, καὶ αὐτοί περ πονεώμεθα [Refs 8th c.BC+]
__II although, albeit, usually with participle, καὶ αὐτῇ περ νοεούσῃ [Refs 8th c.BC+]: so in later Poets, κ. ἀχνύμενος [Refs 5th c.BC+]participle must frequently be supplied, καὶ θεός περ [ὤν] [Refs 4th c.BC+]; γιγνώσκω σαφῶς, κ. σκοτεινὸς [ὤν], τήν γε σὴν αὐδὴν ὅμως [Refs 5th c.BC+]; also εἰ μέμονάς γε, καὶ ὀψέ περ [ἐρυόμενος],.. ἐρύεσθαι [Refs 8th c.BC+]; λέγεις ἀληθῆ, κ. ἐκ μακροῦ Χρόνου [λέγων] [Refs 5th c.BC+]; ἀλλ᾽ ἔστιν ὧν δεῖ, κ. οὐ πολλῶν ἄπο, ={καίπερ οὐ πολλῶν ὄντων}, [Refs 5th c.BC+]; κ. (to be read καίτοι) ἐκεῖνό γε ᾤμην τι εἶναι [Refs 5th c.BC+]