Last letter = First Letter, min 3 syllable word chain

disentomb

biscotti

impudent

translator

retroflex

xenophobe

extraterrestrial

loconicism

magnanimous

sepulchre

echinacea

Abednego

Oblomov Oblomov - Wikipedia

vehicular

Radagast

Terwilliger

rhododendron

nebulous

sesquipedalian

nunnery