regain

From Middle French regaigner (French regagner). Surface etymology is re- +‎ gain.

• Rhymes: -eɪn

regain (third-person singular simple present regains, present participle regaining, simple past and past participle regained)

1. (transitive) To get back; to recover possession of.
   • 2012 April 23, Angelique Chrisafis, “François Hollande on top but far right scores record result in French election”, in The Guardian‎:

     Sarkozy's total will be seen as a personal failure. It is the first time an outgoing president has failed to win a first-round vote in the past 50 years and makes it harder for Sarkozy to regain momentum.

• Gainer, Gearin, Reagin, Regina, anigre, earing, gainer, in gear, inrage, raigne, reagin, regian

regain m (uncountable)

1. second crop (typically of grass)
2. renewal
3. upsurge

• “regain” in le Trésor de la langue française informatisé (The Digitized Treasury of the French Language).