elevenscore

Etymology tree
Proto-Indo-European *ís?
Proto-Indo-European *h₁óynos
Proto-Germanic *ainaz
Proto-Indo-European *leyp-
Proto-Germanic *lībaną
Proto-Germanic *-lif
Proto-Germanic *ainalif
Proto-West Germanic *ainalif
Proto-West Germanic *ainalifun
Old English endleofan
Middle English elleven
English eleven
Proto-Indo-European *(s)ker-
Proto-Germanic *skurō
Old Norse skorder.
Old English scoru
Middle English score
English score
English elevenscore
From eleven + score.