Je was op zoek naar: potera (Latijn - Engels)

potera
could

herodias autem insidiabatur illi et volebat occidere eum nec potera
therefore herodias had a quarrel against him, and would have killed him; but she could not:

heli autem erat nonaginta et octo annorum et oculi eius caligaverant et videre non potera
now eli was ninety and eight years old; and his eyes were dim, that he could not see.

ain cum adhuc subsisteremus defecerunt oculi nostri ad auxilium nostrum vanum cum respiceremus adtenti ad gentem quae salvare non potera
as for us, our eyes as yet failed for our vain help: in our watching we have watched for a nation that could not save us.