The word "attingence" is not recognized in standard dictionaries, and there is no agreed-upon spelling for it. However, based on its pronunciation (/əˈtɪndʒəns/), it seems likely that it is intended to be spelled "attinence" or "attendingence". The pronunciation suggests that the word is derived from the verb "attend", meaning to be present at or pay attention to something, and the suffix "-ence", which forms nouns denoting a state or quality. Nevertheless, it is wise to consult a dictionary when using a word that is not widely recognized.