We don't have synonyms for sumph yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are sump, humph and gumph.
(n) :
(Scotland, Northern England) A dunce; a blockhead.
(n) :
Obsolete form of sump (“lowest part of a mineshaft, into which water drains”). [A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink.]
(n) :
(Scotland, Northern England) A dunce; a blockhead.
(n) :
Obsolete form of sump (“lowest part of a mineshaft, into which water drains”). [A hollow or pit into which liquid drains, such as a cesspool, cesspit or sink.]