nag

1 nag /ˈnæg/ verb
nags; nagged; nagging
1 nag
/ˈnæg/
verb
nags; nagged; nagging
Britannica Dictionary definition of NAG
1 
a  : to annoy (someone) by often complaining about his or her behavior, appearance, etc.
[+ object]
— + about
[no object]
b  : to annoy (someone) with repeated questions, requests, or orders
[+ object]
[no object]
2 
: to cause (someone) to feel annoyed or worried for a long period of time
[+ object]
[no object]
— often + at

— nagging

/ˈnægɪŋ/ adjective, always used before a noun [more nagging; most nagging]
2 nag /ˈnæg/ noun
plural nags
2 nag
/ˈnæg/
noun
plural nags
Britannica Dictionary definition of NAG
[count] informal
: a person who nags or complains too often
3 nag /ˈnæg/ noun
plural nags
3 nag
/ˈnæg/
noun
plural nags
Britannica Dictionary definition of NAG
[count]
: a horse that is old and usually in bad condition