As defined by A Concise Dictionary of Old Icelandic (Geir Zoëga):
reikana Old Icelandic word can mean:
- (að), v. to reckon, count, calculate;
- refl., reiknast, to be reckoned (Þorlákr reiknast milli þeirra biskupa, er); to hold mutual reckoning; reiknuðust þeir þá við um frændsemi, they reckoned up their relationship.
Possible runic inscription in Younger Futhark:ᚱᛁᛁᚴᛅᚾᛅ