An Etymological Dictionary of Astronomy and Astrophysics

To apply or put forth, as strength.

Etymology (EN): From L. ex(s)ertus, p.p. of exserere “to thrust out, put forth,” from → ex- “out,” + serere “to bind together.”

Etymology (PE): Balizidan, from Kurd (Kurm.) bil “work,” bilîn “to work,” variant of varz, → practice, + infinitive suffix -idan.