arrest (v.) Look up arrest at Dictionary.com
"to cause to stop," also "to detain legally," late 14c., from Old French arester "to stay, stop" (12c., Modern French arrêter), from Vulgar Latin *arrestare "to stop, restrain" (source also of Italian arrestare, Spanish and Portuguese arrestar), from ad "to" (see ad-) + Latin restare "to stop, remain behind, stay back," from re- "back" (see re-) + stare "to stand," from PIE root *stā- "to stand, set down, make or be firm" (see stet). Figurative sense of "to catch and hold" (the attention, etc.) is from 1814.
arrest (n.) Look up arrest at Dictionary.com
"act of stopping; state of being stopped," late 14c., from Anglo-French arest, Old French areste (n.) "stoppage, delay" (12c., Modern French arrêt), from arester "to stay, stop" (see arrest (v.)). Especially in law, "the taking of a person into custody, usually by warrant from authority, to answer an alleged or suspected crime" (early 15c.).