The Latin word simpliciter means ‘simply’ or ‘plainly’. In philosophical contexts, it basically means ‘plainly, without qualification’.
For instance, the statement: ‘That I know there is red when I sense it is true simpliciter’, is to say that, ‘When I see red, I know, simply and unconditionally, there is red.’
The term is also used in legal contexts with the same meaning. It is a common term in Scots law, a common law system that emerged in Scotland as the Celtic system in place took on English, Norman and later Roman influence.