Abbott-Smith Manual Greek Lexicon
προσ-κεφάλαιον (G4344)
1 προσ-κεφάλαιον , -ου, τό , [in LXX: Ez 13:18 , 20 ( כֶּסֶת ), I Es 3:8 *;] a pillow , cushion : Mk 4:38 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain