Because the word “fog” is both the singular and plural form of the noun, I am fairly certain this should be written as “fogs bane.”
Adding an apostrophe before the S indicates a possessive noun, but see above: adding an apostrophe after the S is not needed
Edit to clarify. Theres no such thing as fogs plural. As in “the bank of fogs kill unwary advenurers who step over the line.”
What I am getting at is there is no possessive apostrophe when the noun is uncountable
Sheep is the singular and plural form of the noun.
So, how would you describe the wool of more than one sheep?
The answer is sheep’s wool and the apostrophe and s indicates the possessive, i.e. the wool of the sheep.
This is the same, i.e. fog’s bane is the bane of the fog (presumably something that dispels fog).
Wouln’t it be rendered “fog bane” then if the fog was understood to indicate the whole fog as one noun?
As in “bug spray” not “bugs spray” nor " bug’s spray"
“Deer skin” not “deers skin” nor “deer’s skin”
“Bear pelts” not “bears pelts” nor “bear’s pelts”
The first two are incorrect because they don’t indicate the possessive at all and the third is incorrect because it indicates that the (multiple) pelts are the possessive from a single bear. The correct form would be Bears’ pelts to indicate that the pelts are from multiple bears.
Engrish is hard I guess?