Final answer:
The word 'lovelier' is spelled correctly as provided. The exercise focuses on understanding spelling rules, particularly with words ending in or , where the use of a single or double 't' is based on the root word and standard spelling conventions.
Step-by-step explanation:
The word lovelier as provided in your question is already spelled correctly. Additionally, when working with spelling variations that involve the endings <tle> or <ttle>, it is essential to determine whether a single or double t is required based on the root word and the standard conventions of English spelling. For example, 'battle' requires a double 't' due to its root form, but changes to 'settle' would still maintain a single 't' even though the initial consonant has been altered. Understanding spelling rules and their exceptions helps in identifying the correct spellings of words. When in doubt, consulting a dictionary can provide clarity on the proper spelling of any given word.