eternally

the word 'eternally' is built upon the latin adjective aeternus, which itself derives from aevum, meaning "age" or "an indefinitely long period." the suffix -alis was added to form the english adjective 'eternal,' meaning "pertaining to everlasting time." finally, the old english adverbial suffix -līce was appended, creating the modern adverb. thus, the word's literal construction follows a clear path from the concept of an age, to the quality of being everlasting, to the manner of existing in that timeless state.

Structure: etern (age, long duration) + al (adjective suffix) + ly (adverb suffix) etern (from latin aeternus, meaning "everlasting, eternal"); al (from latin -alis, a suffix forming adjectives meaning "of or pertaining to"); ly (from old english -līce, a suffix forming adverbs from adjectives).