Last letter = First Letter, min 3 syllable word chain

circulation

Noxzema

Adamantium

Miskatonic

Cthulhu

(The) Underminer

undertaker

recliner

Ruritania

Abyssinia

absentia

Athelney

Yabba-dabba-doo!

orthodontics

sodomite

-“BB”-

episcopalian

Nestorianism

multiples

Sisyphus

standardized