entonce

• entonçe, entonçes, entonces
• estonçe, estonce, estonçes, estonces

Compounded from Latin in + *tunce, archaic form of the more standard tunc. About as equally attested in the Old Spanish period as its variant estonce, with or without the "adverbial -s" ending.

entonce

1. then
   • c. 1250, anonymous, Bocados de oro , (ed. by Mechthild Crombach, 1971, Bonn: Romanisches Seminar der Universität Bonn):

     E el regno de los griegos era partido entonce por muchos reyes. E algunos d'ellos davan tributo al rey persiana.

     And the kingdom of the Greeks was then split among many kings. And some of them gave tribute to the Persian king.

• Spanish: entonce, entonces

Inherited from Old Spanish entonçe, entonce, compounded from Latin in + *tunce, archaic form of tunc. Still in common use in the 16th century, it became very rare by the 17th century.

• IPA^(key): (Spain) /enˈtonθe/ [ẽn̪ˈt̪õn̟.θe]
• IPA^(key): (Latin America) /enˈtonse/ [ẽn̪ˈt̪õn.se]
• (Spain) Rhymes: -onθe
• (Latin America) Rhymes: -onse
• Syllabification: en‧ton‧ce

entonce

1. Obsolete form of entonces.

• “entonce”, in Diccionario de la lengua española, Vigésima tercera edición, Real Academia Española, 2014