The Spanish verb 'forzar' (to force) traces its origins to the Latin word 'fortis', meaning 'strong' or 'brave'. This evolved into the Latin noun 'fortia', which referred to 'strong things' or 'brave deeds'. Later, in Late Latin, the verb 'fortiare' was formed, meaning 'to apply force'. Finally, this developed into the modern Spanish 'forzar', where the 't' sound transformed into 'z', a common sound change between Latin and Spanish.

Several common Spanish words share this Latin root, including 'fuerte' (strong), 'fuerza' (force, strength), and 'fortalecer' (to strengthen). You can see how all these words maintain the core meaning of strength or force from the original Latin 'fortis'. The noun 'fuerza' is particularly helpful to remember, as it's directly related to the verb 'forzar' - when you force something, you apply strength or 'fuerza' to it.

English speakers will recognize this etymology in words like 'force', 'fort', 'fortress', and 'fortify', all of which come from the same Latin root 'fortis'. The connection is clear: a 'fort' or 'fortress' is a strong building, to 'fortify' means to make something stronger, and to use 'force' is to apply strength. The English 'force' and Spanish 'forzar' are particularly close cousins, both in meaning and in form.