This is the 949th most frequent Danish word.
trukket
"Trukket" means "pulled" or "withdrawn" in English, depending on context.
In this sentence, "trukket" describes the act of withdrawing or retreating, a reflexive usage of the verb "trække" with "sig".
Han havde trukket sig tilbage fra konkurrencen.
He had withdrawn from the competition.
In this usage, "trukket" is in a passive construction, denoting that the action of pulling was performed by an external agent, the old steam locomotive.
Toget blev trukket af et gammelt damplokomotiv.
The train was pulled by an old steam locomotive.
Here, "trukket" is the past participle form of the verb "trække" (to pull), indicating the completed action of pulling the curtains.