Word: res communis
Origin: Latin word
Meaning: common to all
Example: Property constructs like airspace and water rights are said to be res communis – that is, a thing common to all, and that could not be the subject of ownership.
Water is a bit more defined — it is common until captured
Word: stare decisis
Origin: Latin word
Meaning: To stand by [things] decided
Example: The obligation of a judge to stand by a prior precedent.