def remove_suffix_ness(word):
    """Remove the suffix from the word while keeping spelling in mind.

    :param word: str - of word to remove suffix from.
    :return: str - of word with suffix removed & spelling adjusted.

    For example: "heaviness" becomes "heavy", but "sadness" becomes "sad".
    """

    word = word[:-4]
    if word[-1] == 'i':
        word = word[:-1] + 'y'

    return word