Hleri

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

hleri

a, m. or hlöri, but hleði in Korm. 10, Ísl. ii. 113; that hleri or hlöri is the better form is borne out by the mod. usage as well as by the derived hler and hlera:—a shutter or door for bedrooms and closets in old dwellings, which moved up and down in a groove or rabbet, like windows in Engl. dwellings, and locked into the threshold: the passage in Korm. S. is esp. decisive, where Kormak sees Steingerda’s feet outside between the half-shut door (hleri) and the threshold,—hann rak kerli fyrir hleðann svá at eigi gékk aptr, viz. between the threshold and the shutter, Ísl. ii. 113; hence comes the law phrase, standa á hleri (hlera?), to stand at the shutter, i. e. to stand listening, eaves-dropping, Bjarn. 43: freq. in mod. usage, as also standa of hleðum, id., Hðm. 23: in mod. usage a shutter for a window is called hleri.

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