Adjective (な)
Noun
Verb (する, intransitive)
1. feeling (much) obliged; being (very) grateful; being thankful
Noun
Verb (する, intransitive)
2. feeling sorry (for troubling someone); feeling ashamed (e.g. of an error); feeling embarrassed (e.g. by someone's compliments, hospitality, etc.)
oft. before a request, as ～ですが
3. shrinking back in fear