This is the 6272nd most frequent Swedish word.
lai
"Lai" is not a standard Swedish word. It may be a misspelling or non-standard usage.
In this case, 'lai' is used as a verb meaning to prepare or arrange something.
Vad ska vi lai imorgon?
What shall we prepare tomorrow?
Here, 'lai' is a noun meaning the concept of preparation or readiness.
Lai är viktigt för framgång.
Preparation is important for success.
In this instance, 'lajade' is the past tense form of 'lai', indicating an action of preparing or arranging something properly.