ask around vs ask over

ask around

verb
  • To enquire of different people about something. 

  • I don't know the answer to that, but maybe someone else does - I'll ask around. 

ask over

verb
  • To invite (someone) to come to one's house or other place. 

How often have the words ask around and ask over occurred in a corpus of books? (source: Google Ngram Viewer )