בֹּסֶר‎ (bôçer|bo'ser|noun|masculine|unripe)
[Heb] בֹּסֶר‎ ETCBC: בֹּסֶר‎ (subs|grape) OSHL: b.cd.ab TWOT: 257a GK: H1235
Derivation: from the same as בֶּסֶר‎
Strong's: {an immature grape}
KJV: sour grape.