• 06.050 that lived under the shadow of the goblin-infested mountains,

Ugh.  Vermin. This word is not found in OED.

• 04.038 down more dark passages with the yells of the goblin-hall

This word is not found in OED.

• 05.144 which held drink for the goblin-guards,

This word is not found in OED.

• 08.132 and more wholesome than any goblin-dwelling,

This word is not found in OED.

• 04.023 while the goblin-drivers whooped

Drivers who were goblins, not drovers of goblins.  This word is not found in OED.

• 03.035 the Goblin-cleaver
• 04.033 Goblin-cleaver,
• 04.048 and found Goblin-cleaver,

This word is not found in OED, it is one of Tolkien’s wonderful named objects.

• 09.005 These were not like those of the goblin-cities;

This word is not found in OED.

• 04.041 It made no trouble whatever of cutting through the goblin-chains

This word is not found in OED.

• 18.022 and he seemed to have grown almost to giant-size

This word is not found in OED, not even as “giant-sized”.

• 06.012 till we had dashed through the gate-guards,

This word is not found in OED.