This is the 8529th most frequent Polish word.
pośmiertnie
Posthumously.
The word 'pośmiertnie' here indicates that the event (publication of the work) occurred after the individual's death.
Jego praca została opublikowana pośmiertnie.
His work was published posthumously.
In this context, 'pośmiertnie' conveys that the individual received recognition after they had passed away.
Został uhonorowany nagrodą pośmiertnie za swoje osiągnięcia.
He was awarded a prize posthumously for his achievements.
The usage of 'pośmiertnie' here denotes that the subject of the documentary is deceased and the documentary recounts events about him after his death.