Liðskylfr

As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):

liðskylfr

a. requiring many people (vér höfum skip mikit ok liðskylft).

Possible runic inscription in Younger Futhark:ᛚᛁᚦᛋᚴᚢᛚᚠᚱ