I never knew this before, and now that I know it, I feel
compelled to send it on to my more intelligent friends in the hope that they,
too, will feel edified. Isn't history more fun when you know something
about it? Before the Battle of Agincourt in 1415, the French,
anticipating victory over the English, proposed to cut off the middle finger of
all captured English soldiers. Without the middle finger it would
be impossible to draw the renowned English longbow and therefore they would be
incapable of fighting in the future. This famous English longbow was made of
the native English Yew tree, and the act of drawing the longbow was known as
'plucking the yew' (or 'pluck yew').
Much to the bewilderment of the French, the English won a major upset and began
mocking the French by waving their middle fingers at the defeated French,
saying, See, we can still pluck yew! Since 'pluck yew' is rather
difficult to say, the difficult consonant cluster at the beginning has
gradually changed to a labio dentals fricative F', and thus the words often
used in conjunction with the one-finger-salute! It is also because
of the pheasant feathers on the arrows used with the longbow that the symbolic
gesture is known as 'giving the bird.'
And yew thought yew knew every plucking thing
If its not true its a great story! Ha!