From the Latin for "a foot and a half long" comes this adjective for one who uses er... a really long word
They both come from Latin v, which, classically, had a [w] sound as a ... aside 
from that it can be confused with the past form of the verb wind ... And actually it 
seems we wouldn't need another word; vuln is pretty ... literally sesquipedalian  
a foot and a half long  spanning one.