G2777 κεφαλίς (kephalís)

KJV renderings: volume
Strong's definition: properly, a knob, i.e. (by implication) a roll (by extension from the end of a stick on which the manuscript was rolled)
Derivation: from G2776 (κεφαλή);

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.