Student or Learner
I'm sure that the verb in my sentence is not correct. What is the verb that fits here?
"As he didn't have anybody in this city, when he wanted to go on that decisive trip, he delegated his 4 year old son to me."
I mean he asked me to take care of his son for a while.
Thanks very much bhaisahab.
But is there any other way to say that?
bhaisahab has given you the best way to say it.
Colloquially, you'll hear in BE, 'He asked me to mind or look after his son for a while' and in AE 'He asked me to watch his son for a while'.
He certainly didn't delegate his son.
You could say (quite unnaturally) that he delegated the care of his son to you.
The point is that it's not the son that is delegated; it is the care of the son, or even 'responsibility for the care of his son' - a delegate (noun, /'delɪgət/ )is someone who is, for the time being, doing someone else's job. You have delegated /̝delɪ'geɪtɪd/ that responsibility to him or her.
But as has been said 'ask s.o. to look after/take care of...' would be more natural here - or even specify the activity if it's a short term thing - 'ask them to take him to football [for me]'.