seguramente
/seˌɡuɾaˈmente/ · A2 · adv
surely
🔒 seguro (secure, sure) + -mente (-ly) = surely
Spanish builds adverbs by adding -mente to the feminine adjective: segura + mente. Seguro comes from Latin securus, the same root as English secure and sure. In everyday speech it often softens to mean probably.