endearment
noun
[ ɪnˈdɪəm(ə)nt ]
• a word or phrase expressing love or affection.
• "she was whispering endearments and repeatedly kissing him"
Similar:
sweet nothings,
sweet words,
sweet talk,
affectionate talk,
soft words,
term of affection,
term of endearment,
pet name,
affectionate name,
hypocoristic,
hypocorism,