so·lus 
(sōləs)
(sōləs)adv. & adj.
By oneself; alone. Used as a stage direction to a male character.
[Latin sōlus, alone; see SOLO.]
- progestational
- progesterone
- progestin
- progestogen
- proglottic
- proglottid
- proglottidean
- proglottis
- prognathic
- prognathism
- prognathous
- prognosis
- prognostic
- prognosticate
- prognostication
- prognosticative
- prognosticator
- prograde
- program
- program director
- programed
- programer
- programing
- programmability
- programmable