Does Sen Mean Old?

Does Sen Mean Old? Proto-Indo-European root meaning “old.” It forms all or part of: monseigneur; seignior; senate; senescent; seneschal; senicide; senile; senility; senior; seniority; senor; senora; senorita; shanachie; Shannon; signor; sir; sire; surly. What does the Latin stem Sen mean? (Latin: old age, old, elder, elderly) Does ALB mean white? Alb-: Prefix from the Latin