"Gold" is a noun. It does not have comparative and superlative forms.
The adjective from "gold" is "golden" - more / most golden.
Note: that "gold" can be used to modify other nouns, because in English nouns can do that: gold ring, gold plate. But it remains a noun.
comparative - merrier superlative - merriest
comparative = tenderer superlative = tenderest
Lazy is the positive degree. The comparative is lazier, and the superlative is laziest.
The comparative is later, and the superlative is latest
comparative and superlative of legibly
comparative : purer superlative : purest
Comparative: older Superlative: oldest
Dative; Early Comparative; Earlier Superlative; Earliest
The comparative and superlativeforms of grand are: Comparative: grander Superlative: grandest
comparative - merrier superlative - merriest
comparative = sadder superlative = saddest
Comparative: shallower Superlative: shallowest
The comparative is "stricter" and the superlative is "strictest".
The comparative is greater and the superlative is greatest.
Comparative is more and superlative is most.
comparative straighter and the superlative the straightest
Comparative: thinner Superlative: thinnest