This is the 996th most frequent Finnish word.
eivätkä
"Nor do they" or "and they do not."
In this sentence, 'eivätkä' is used to connect two negative abilities of the subject, meaning 'nor'.
He eivät osaa uida eivätkä ajaa pyörällä.
They cannot swim nor ride a bicycle.
Here, 'eivätkä' continues the negation of the first clause and applies it similarly to the other subject.
Emmekö nähneet lintua, eivätkä sitä ollut muutkaan huomanneet.
Didn't we see the bird, nor had others noticed it either.
In this example, 'eivätkä' links two actions that the subject did not perform.