jelly (n.) Look up jelly at Dictionary.com
late 14c., from Old French gelee "a frost; jelly," noun use of fem. past participle of geler "congeal," from Latin gelare "to freeze," from gelu "frost" (see cold (adj.)).
jelly (v.) Look up jelly at Dictionary.com
c.1600, from jelly (n.). Related: Jellied; jellying.