English
shellcode
From shell + code.
Proto-Indo-European *(s)kelH- ‘to cut, split’
Proto-Germanic *skaljō ‘shell, husk’
Proto-West Germanic *skallju
Old English sċiell
Middle English schelle
English shell
Latin caudex ‘the stock or stem of a tree’
Latin cōdex ‘tree trunk’
Old French code ‘system of law’
Middle English code ‘system of law’
English code
Today it means
noun A small piece of code, used as the payload of a virus or other malware, that launches a shell so that the attacker can control the compromised computer.
Sources
Sources: Wiktionary, “shellcode”. By Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); text adapted and restructured. Language periods are conventional ranges, not dates for this word. License.
Etymograph / shellcode