This is the 10445th most frequent French word.
laissaient
"Used to let" or "were letting."
Here, 'laissaient' is used in the imparfait tense to describe a habitual action in the past.
Ils laissaient la porte ouverte chaque soir.
They left the door open every evening.
In this usage, 'laissaient' again conveys an action repeatedly performed in the past.
Les enfants laissaient leurs jouets éparpillés dans le salon.
The children left their toys scattered in the living room.
'Laissaient' is employed to depict an ongoing action in the past indicative of the subject's behavior or effect.