po·co a po·co 
(pōkō ä pōkō)
(pōkō ä pōkō)adv.
Music
Music
Little by little; gradually. Used chiefly as a direction.
[Italian : poco, little + a, by + poco, little.]
- obstinately
- obstinateness
- obstipation
- obstreperous
- obstreperously
- obstreperousness
- obstruct
- obstructer
- obstruction
- obstructionism
- obstructionist
- obstructionistic
- obstruction of justice
- obstructive
- obstructively
- obstructiveness
- obstructor
- obstruent
- obtain
- obtainable
- obtainer
- obtect
- obtected
- obtest
- obtestation