mote
Mote (noun) means a tiny particle of dust or matter; a speck.
Etymology
Came into English from Middle English mot, from Old English mot (“grain of sand; mote; atom”), from Proto-West Germanic *mot (“grain of dirt or sand, speck”). It may be linked to English mud. Compare West Frisian mot (“peat dust”), Dutch mot (“dust from turf; sawdust; grit”), Low German mut (“peat dust, grit”), Norwegian mutt (“speck; mote; splinter; chip”), Italian mota (“mud”) and Spanish mota (“speck”).