deader
No.
deader, deadest
That is the correct spelling of the comparative adjective "cheaper" (not as expensive).
The likely word is the comparative adjective cleverer(more clever).
The comparative of heavy is "heavier" (having more weight).
The anagram is the unusual comparative adjective "duckier" (more ducky).
That is the correct spelling of the comparative adjective "heavier" (having greater weight).
Further. More distant. More remote. It is a comparative.
worse
There is no such term: "worse" is the comparative of the adjective bad.The superlative (most bad) is spelled worst.
to say dead in hawaiian we say MAKI
It does not have any. Deader and deadest would be meaningless!