"track, trace," 1823, used originally by travelers in South Africa, from Afrikaans spoor, from Dutch spoor, from Middle Dutch spor, cognate with Old English spor "footprint, track, trace," from Proto-Germanic *spur-am, from PIE *spere- "ankle" (see spurn).
中文解释
1. spur => *sper- 'hit with the foot, kick' => spoor "track".