Why this word is great
PERLUSTRATE — [Verb] To travel through an area for the purpose of careful examination or survey. From Latin perlustratus, perfect participle of perlustrare, from per- ("through") + lustrare ("to wander through, survey"), from lustrum ("a purificatory sacrifice; later, a period of five years"). Unlike "traverse" (which merely denotes crossing) or "scrutinize" (which implies a static, intense gaze), to perlustrate is to make motion itself an instrument of methodical observation. It is the forest ranger's slow patrol of a blighted copse, the archivist’s measured progress along silent, towering shelves, and the detective pacing a rain-slicked alley at dawn, reading the ground before a single stone is lifted. The act is a pilgrimage of attention, a ritual of passage that purifies understanding of the unknown.