Fæstnian
Fæstnian is an Old English word that translates to "fasten," "make firm," or "secure." It appears in various Old English texts, often in a literal sense referring to the physical act of attaching or fixing something. For instance, it could describe the fastening of armor or the securing of a door.
Beyond its literal meaning, fæstnian also carried a more abstract sense. It could imply making something certain
The word is related to modern English words like "fasten" and "fest." The root likely signifies something