the.com/hater

means Someone who reflexively criticizes or puts down others, often driven by resentment rather than fair judgment.

from From 'hate,' a word with deep Germanic roots (Old English 'hete'/'hatian'), tracing back further to a Proto-Indo-European root linked to feelings of strong dislike. The agent-noun 'hater' is old enough as a simple formation, but its modern slang punch — the dismissive 'haters gonna hate' sense — was popularized through hip-hop and R&B culture in the 1990s and 2000s, where it described people who criticized your success out of jealousy rather than honest critique. The internet then ran with it, cementing 'hater' as shorthand for envy dressed up as opinion.