depuis

de (French)

By (indicates the amount of change). From (used to indicate origin). From (used to indicate the start of a time or range). Of (expresses belonging). Of (indicates an amount). Of (used to express property or association). Used after certain verbs before an infinitive, often translated into English as a gerund or an infinitive. Used attributively, often translated into English as a compound [...]

puis (French)

Then (archaic, or, literary) And.

depuis (French)

(regarding time) for the last ~, over the past ~. (regarding time) for ~. From. Since. Since, ever since (informal) ever since.