The Collaborative International Dictionary
Symphytism
Symphytism \Sym"phy*tism\, n. [Gr. ? grown together.] Coalescence; a growing into one with another word. [R.]
Some of the phrasal adverbs have assumed the form of
single words, by that symphytism which naturally
attaches these light elements to each other.
--Earle.
Wiktionary
symphytism
n. coalescence; a growing into one with another word