Salus populi est suprema lex – The safety of the people is the supreme law.
Sciens – Knowingly.
Scienter – Knowingly.
Scire facias – That you cause to know.
Scribere est agere – To write is to act.
Se defendendo – In self defence.
Secus – The legal position is different, it is otherwise.
Semper praesumitur pro legitimatione puerorum – Everything is presumed in favor of the legitimacy of children.
Semper pro matriomonio praesumitur – It is always presumed in favor of marriage.
Sententia interlocutoria revocari potest, definitiva non potest – An interlocutory order can be revoked, a final order cannot be.
Servitia personalia sequuntur personam – Personal services follow the person.
Sic utere tuo ut alienum non laedas – So use your own as not to injure another’s property.
Simplex commendatio non obligat – A simple recommendation does not bind.
Stare decisis – To stand by decisions (precedents).
Stet – Do not delete, let it stand.
Sub modo – Within limits.
Sub nomine – Under the name of.
Sub silentio – In silence.
Sublata causa, tollitur effectus – The cause being removed, the effect ceases.
Sublato fundamento, cadit opus – The foundation being removed, the structure falls.
Subsequens matrimonium tollit peccatum praecedens – A subsequent marriage removes the preceding wrong.
Suggestio falsi – The suggestion of something which is untrue.
Sui generis – Unique.
Summa ratio est quae pro religione facit – The highest reason is that which makes for religion, i.e. religion dictates.
Suppressio veri – The suppression of the truth.
Suppressio veri expressio falsi – A suppression of truth is equivalent to an expression of falsehood.