What is to form, or exist in, a mean or medial sum or quantity; to amount to, or to be, on an ~; as, the losses of the owners will average twenty five dollars each; these spars average ten feet in length called?

average — To form, or exist in, a mean or medial sum or quantity; to amount to, or to be, on an ~; as, the losses of the owners will average twenty five dollars each; these spars average ten feet in length. (Webster's 1913.)