Other forms: scalps
The scalp is the skin on top of your head, where the hair grows out of. Thick, and remarkably well supplied with blood.
That blood supply is why a small cut there bleeds alarmingly and why it heals fast. Dandruff and psoriasis are scalp conditions rather than hair ones. The verb has a grim historical sense from the practice of taking scalps as trophies, which was carried out by several groups including European settlers who paid bounties for them. Ticket touts are said to scalp tickets in American English.
1nounscalpThe skin covering the top of the head.
“The sun had burnt his scalp through his hair.”
Scalp was a northern word for the crown of the head or the skull. Its background is unclear, though Old Norse skálpr, a sheath, sits close by, which would make the scalp a covering for the skull.
Middle English
scalp
English, today
scalp
Built from
From Middle English scalp, skalp, scalpe (“crown of the head; skull”). Originally a northern word, and therefore probably from a gmq source, although the sense-development is unclear; compare Sylt frr Skolp (“dandruff”), Old Norse skálpr (“sheath”), gmq-osw skalp, Dutch schelp (“shell”).
Etymology from Wiktionary, CC BY-SA