Last letter = First Letter, min 3 syllable word chain

orangerie

expectorate

-“BB”-

Excalibur

rhetorical

logical

Ligonier

responsibility

Yakima

Adirondack

Kangaroo

Oxymoron
(aside – can’t believe this word hadn’t been used yet!)

-“BB”-

nevertheless

succotash

haberdasher

ransomware

-“BB”-

ergonomic

Catholicism

madrigal

lycanthropy

Yellowhammer