hull (v.) Look up hull at Dictionary.com
"to remove the husk of," early 15c., from hull (n.1). Related: Hulled, which can mean both "having a particular kind of hull" and "stripped of the hull."
hull (n.2) Look up hull at Dictionary.com
"body of a ship," 1550s, usually said to be identical with hull (n.1) on fancied resemblance of ship keels to open peapods. Compare Latin carina "keel of a ship," originally "shell of a nut;" Greek phaselus "light passenger ship, yacht," literally "bean pod;" French coque "hull of a ship; shell of a walnut or egg." The alternative etymology is from Middle English hoole "ship's keel" (mid-15c.), from the same source as hold (n.) and conformed to hull (n.1).
hull (n.1) Look up hull at Dictionary.com
"seed covering," Middle English hol, hole, from Old English hulu "husk, pod," from Proto-Germanic *hulu- "to cover" (source also of Old High German hulla, hulsa; German Hülle, Hülse, Dutch huls), from PIE root *kel- (2) "to cover, conceal, save." Figurative use by 1831.