1. at intervals; now and then; occasionally
Usage: archaic or literary
2. in the time between two events; meanwhile
Usage: archaic or literary

Examples

• Betweenwhiles, she would glance out the window at the garden.
• He worked on his novel, and betweenwhiles he took walks through the park.
• The old house stood empty, though betweenwhiles a caretaker would visit.
• Betweenwhiles, the children played games while their parents prepared dinner.
• She read her book, and betweenwhiles sipped her tea.