ontake
To take on; undertake; assume.
transitive
In 1413 he entered into a bond of manrent at Dundee, with the earl of Crawford, that he, the said Sir Patrick," is becumyn man of special retinue till the said earl, for the term of his life, nane ontaken but amitie and allegiance till our lord the king, [...]
To undertake a debt.
transitive
Where it comes from
From Middle English ontaken, equivalent to on- + take. Compare Old English onniman (“to receive, take”).
Adapted from the Wiktionary entry ontake (CC BY-SA 4.0).