now with most langauages the spelling of a word will differ over time
even the pronuciation may stay the say along with the the meaning
so are you sure that "spline" wasnt realy meant as "spine"
as for me i have always refered to it as spine and always will
started shooting bows before there wheels on them,so no i am not new to it
it has always been refered to as "spine" as long as i have been shooting bows and as long as my uncle,whom taught me to shoot bows,has been shooting them too
and hes pushing 70 yrs old now,so i would say spine has to be the correct term
there,that was my last few whacks at the horse.
now lets grill it and eat it