Beware, older languages below!
The languages below were invented during Tolkien's earlier period and should be used with caution.
Remember to never, ever mix words from different languages!
Early Noldorin
bog
noun.price, cost
A word appearing as ᴱN. bog “price, cost” in the Early Noldorin Dictionary of the 1920s, clearly based on ᴱN. bag- “trade” and the early root ᴱ√VAKA (PE13/160; QL/99).
Neo-Sindarin: For purposes of Neo-Sindarin, I would adapt this word as ᴺS. bauch “price, cost” based on the later root ᴹ√MBAKH “exchange”, from primitive ✱mbākha.
A word appearing as ᴱN. bog “price, cost” in the Early Noldorin Dictionary of the 1920s, clearly based on ᴱN. bag- “trade” and the early root ᴱ√VAKA (PE13/160; QL/99).
Neo-Sindarin: For purposes of Neo-Sindarin, I would adapt this word as ᴺS. bauch “price, cost” based on the later root ᴹ√MBAKH “exchange”, from primitive ✱mbākha.