NETHERMOST
bottommost, lowermost, nethermost
(adjective) farthest down; “bottommost shelf”
Source: WordNet® 3.1
Etymology
Adjective
nethermost (not comparable)
(archaic, mostly, literary) Farthest down; lowest.
Usage notes
• Used in the Cumbrian topographical name Nethermost Cove.
• Not a true superlative in its formation.
Anagrams
• stenotherm
Source: Wiktionary
Neth"er*most`, a. Etym: [AS. ni(Nether, and cf. Aftermost.]
Definition: Lowest; as, the nethermost abyss. Milton.
Source: Webster’s Unabridged Dictionary 1913 Edition