The Spanish adjective 'varonil' meaning 'manly' or 'masculine' comes from combining two elements: the Spanish noun 'varón' (meaning 'man') and the adjective suffix '-il'. The noun 'varón' itself derives from Latin 'varo', which meant 'strong or brave man'. The suffix '-il' is commonly used in Spanish to form adjectives that indicate a characteristic or quality related to the base word.

A simpler and more common related Spanish word is 'varón', meaning simply 'man' (specifically a male person). While 'varón' is the straightforward noun, 'varonil' is the adjective form describing qualities associated with being manly or masculine.

While there aren't any commonly used English words directly related to 'varonil' or 'varón', English speakers might find it helpful to note that the '-il' suffix in Spanish often corresponds to English adjective endings like '-ile' or '-ly' (as in 'virile' or 'manly'). The word 'virile' in English, though from a different Latin root, carries a very similar meaning to 'varonil'.