DV is usually taken to mean "Deo Volente, God willing." It's a great excuse to avoid personal responsibility, as in, "I'll met you at 6:30, God willing." Or, more precisely, "If the road is congested, it's not my fault if I'm late."
I've been happy with Delta Airline's MSP-PDX on-time performance while traveling that city pair a few times in the past month. Prior to a couple takeoffs at Minneapolis/St Paul, MSP, we had to pause at a deicing station. Enough slush time was left in the schedule for the flight to make it to Portland, PDX, on schedule.
Tomorrow I expect to be home, on time, for dinner with my partner, DV (Delta Volente).