paddle (n.)youdaoicibaDictYouDict[paddle 词源字典]
c. 1400, padell "small spade," from Medieval Latin padela, of uncertain origin, perhaps from Latin patella "small pan, little dish, plate," diminutive of patina (see pan (n.)).

Meaning "short oar with a wide blade" is from 1620s. As an instrument used for beating clothes (and slaves, and schoolboys), it is recorded from 1828, American English. Paddle-ball attested from 1935.[paddle etymology, paddle origin, 英语词源]
paddle (v.1)youdaoicibaDictYouDict
"to dabble, wade in water," 1520s, probably cognate with Low German paddeln "tramp about," frequentative of padjen "to tramp, to run in short steps," from pad (v.). Related: Paddled; paddling. Meaning "to move in water by means of paddles" is a different word (see paddle (v.3)).
paddle (v.2)youdaoicibaDictYouDict
"to beat with a paddle, spank," 1856, from paddle (n.). Related: Paddled; paddling.
paddle (v.3)youdaoicibaDictYouDict
"to move in water by means of paddles," 1670s, from paddle (n.). To paddle one's (own) canoe "do for oneself" is from 1828.