Óp

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

óp Old Icelandic word can mean:

óp

n.

óp

1) shout, shouting, crying (þá varð óp mikit at lögbergi ok úhljóð);

óp

2) weeping, crying (sló síðan ópi á barnit).

Possible runic inscription in Younger Futhark:ᚢᛒ