Man-heimar

As defined by the Cleasby & Vigfusson Old Norse to English dictionary:

man-heimar

m. pl. (thus pronounced on the spot, not Mann-heimar, as it is often spelt), the name of a farm in western Icel.; the local legend attributes the name to English captives kept there by lady Olöf, for having slain her husband, during the English trade (1467). But at that time the word man had become quite obsolete, and so the name must be older, prob. dating from the time of the first settler Geirmund, who had been a freebooter in the British waters before he came to Icel.; he may have had his household of bondmen at this farm, see Safn i. 353 (foot-note).

Possible runic inscription in Younger Futhark:ᛘᛅᚾ-ᚼᛁᛁᛘᛅᚱ
Younger Futhark runes were used from 8th to 12th centuries in Scandinavia and their overseas settlements