additional
UK: əˈdɪʃənl | US: əˈdɪʃənl
adj. extra or more than what already exists
adj. supplementary to something else
The word "additional" stems from the Latin root addere ("to add"), combining ad- ("to") and dare ("to give"). The suffix -ition (from Latin -itio) forms nouns indicating action or result, while -al (Latin -alis) converts nouns into adjectives. Over time, "additional" evolved in Middle English to describe something "added" or "extra," preserving the core logic of augmentation.
The hotel charges an additional fee for late check-out.
She provided additional evidence to support her claim.
The recipe calls for additional spices if you prefer more flavor.
An additional layer of paint will make the color more vibrant.
The report includes additional data from recent studies.