Etymology From Middle English fikil, fikel, from Old English ficol (“fickle, cunning, tricky, deceitful”), equivalent to fike + -le. More at fike.
1
Quick to change one’s opinion or allegiance; insincere; not loyal or reliable.
O Fortune, Fortune, all men call thee fickle, / If thou art fickle, what doſt thou with him / That is renown'd for faith? be fickle Fortune: / For then I hope thou wilt not keepe him long, / But ſend him backe.c. 1591–1595 (date written), William Shakespeare, “The Tragedie of Romeo and Ivliet”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene v], page 69:
Still onward winds the dreary way; I with it; for I long to prove No lapse of moons can canker Love, Whatever fickle tongues may say.1850, [Alfred, Lord Tennyson], “Canto XXVI”, in In Memoriam, London: Edward Moxon, […], →OCLC, page 43:
1 more example
As night has such a local ring / And love and rock are fickle things2010, James Murphy, “Home”, in This Is Happening, performed by LCD Soundsystem:
2014, Paul Salopek, Blessed. Cursed. Claimed., National Geographic (December 2014)https://web.archive.org/web/20150212214621/http://ngm.nationalgeographic.com/2014/12/pilgrim-roads/salopek-text To the south, the vast geometrical deserts of Arabian nomads, a redoubt of feral movement, of fickle winds, of open space, of saddle leather—home to the wild Bedouin tribes.
Etymology From Middle English fikelen, from fikel (“fickle”); see above. Cognate with Low German fikkelen (“to deceive, flatter”), German ficklen, ficheln (“to deceive, flatter”).