Last letter = First Letter, min 3 syllable word chain

Excalibur

referendum

metropolitan

nymphomania

adventurous

sponsorship

palmetto

olympic

coordinator

rectification

notification

update

‘update’?

Um, what?

Playing off ‘notification’

nevertheless

Oops, sorry, wrong thread.

sensational

lickety-split

Thunderstorm

misunderstanding

geranium

marigold

dandelion