What is the origin of using '-wise' as a suffix in expressions such as the following. Is it grammatically correct? Is it strongly idiomatic, or sloppy language?
'What is he doing job-wise these days?'
'Grammar-wise it is a good essay, but content-wise it is very thin.'
'When she goes up to university what will she do accommodation-wise?'
'Have you any thoughts of the best plan transport-wise?'