Meaning

verb lose velocity; move more slowly

verb become slow or slower

verb cause to proceed more slowly

originFrom Middle English slaw, slow, from Old English slāw (“lazy; inert, slow”), from Proto-West Germanic *slaiw, from Proto-Germanic *slaiwaz (“blunt; dull; exhausted, faint, sluggish, weak, weary; listless, torpid; dim-witted, slow; lazy, slack”), possibly from Proto-Indo-European *sleyH-u- (“bad”). Cognates Cognate with Dutch slee, sleeuw (“cramped, stiff; blunt; sour”), Danish sløv (“blunt; dull;…

Etymology from Wiktionary, CC BY-SA 3.0