Handkerchief
来自Big Physics
mid 16th century: from hand + kerchief.
wiktionary
From hand + kerchief.
etymonline
handkerchief (n.)
1520s, from hand + kerchief, originally "cloth for covering the head," but since Middle English used generally as "piece of cloth used about the person." A curious confluence of words for "hand" and "head." By-form handkercher was in use 16c.-19c. A dropped handkerchief as a token of flirtation or courtship is attested by mid-18c.