Catalan

Adverb

tantost

1. as soon as

Old French

Etymology

tant +‎ tost.

Adverb

tantost

1. as soon as
   • Tantost cum il sa voiz oï (Tristan, Thomas of England, 12th century)

     Later as he heard his voice.

   • circa 1180, Chrétien de Troyes, Perceval ou le conte du Graal:

     Tantost li chevaliers s'an part

     As soon as the knight left

Descendants

• French: tantôt