Strong's G3749 · Greek

ὀστράκινος

ostrakinos · os-tra'-kin-os

from ostrakon ("oyster") (a tile, i.e. terra cotta); earthen-ware, i.e. clayey; by implication, frail

Scholarly Lexicons

Abbott-Smith Manual Greek Lexicon

 2 ὀστράκινος -η, -ον ( ὄστρακον , an earthen vessel or potsherd ), [in LXX chiefly for חֶרֶשׂ ;] made of clay , earthen : II Co 4:7 , II Ti 2:20 .† 

G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain