Last letter = First Letter, min 3 syllable word chain

supercalifragilisticexpialidocious

superbly

Yosemite

estival

(means “of the summer” – compare with ‘vernal’: or ‘autumnal’)

-“BB”-

librarian

nautical

Lilliput

triumphant

tangential

liposuction

nauseating

glorify

yellowing

gregarious

stupefying

Goliath

hastening

gullible

eligible

elastic