Does Mageseeker Warden stop Accelerate from working?

Ruling: Mageseeker Warden does not stop Accelerate from working. Accelerate causes a unit to enter ready, which is different from readying a unit.

Nuances:

• Mageseeker Warden prevents abilities from readying enemy units, but does not prevent units from entering ready
• This same principle applies to other effects like Vayne and Confront that make units enter ready rather than readying exhausted units