Last letter = First Letter, min 3 syllable word chain

nefarious

skedaddle

elopement

tantamount

towering

gutlessness

sympathetic

contretemps
(first came upon this word back in high school in the Stephen Vincent Benét short story, “The Devil and Daniel Webster”)

-“BB”-

stratosphere

esophageal

logarithm

magnesium

miniscule

expectorant

Terrific!

consumption

Nosferatu

uniform

majestic

chiaroscuro