Sector
/ˈsɛk.tər/noun
A separate part or division of an area, activity, or field.
Did you know?In Latin, a *sector* was not a business division but a “cutter” or “one who slices,” from the same root that gave us *section* and *dissect*.
Etymological Timeline
Proto-Indo-European
PIE
*sek-
“to cut”
Latin
Latin
secare
“to cut”
Latin
Latin
sector
“a cutter; one who cuts”
Late Latin / Old French
Latin/Old French
secteur
“one who cuts; a division or part”
Middle English
English
sector
“a geometric instrument or a division”
Modern English
English
sector
“a distinct part or branch of an area or activity”