forþon

at first

Forþon him ġelȳfeð lȳt, sē þe āh līfes wyn ġebiden in burgum, bealosīþa hwōn, wlonc ond wīngāl, hū iċ wēriġ oft in brimlāde bīdan sċeolde.

At first he believes a little, who has life’s mirth lasted in towns, a little of woes, proud and wine-flown, how weary I oft had to linger on the sea-road.

10th century, The Seafarer:

indeed

also

for that reason, consequently, therefore

Forðon dōmġeorne · drēoriġne oft in hyra brēostcofan · bindað fæste;

Therefore, fame-eager ones oft in their breastcoves bind fast the sad one. [That is, they keep their sadness in their chests, to themselves.]

10th century, The Wanderer:

for that, for, because

Singað Dryhtne song nīowne, for ðon wundur dyde Dryhten.

Sing to the Lord a new song, because the Lord has done wonders.

9th century, Vespasian Psalter