homo
Word family
Synonym discussion
Sense: noun/2
These four terms are often confused in discussions of human evolution. 'Hominid' refers to the entire biological family Hominidae, which includes humans, gorillas, chimpanzees, and orangutans — it is the broadest term. 'Hominin' is narrower and refers to the tribe Hominini, which includes modern humans and our direct ancestors after the split from chimpanzees. 'Homo' is the genus name for the group that emerged around 2.8 million years ago, characterised by larger brains and tool use. 'Homo sapiens' is just one species within this genus — the one that survives today. For example: 'All Homo sapiens are hominins, but not all hominins belong to the genus Homo (e.g., Australopithecus is a hominin but not Homo).'
Etymology
The word comes from the Greek 'homos' (ὁμός), meaning 'same' or 'identical.' Its path into English passed through Latin, where Linnaeus adopted Homo as the genus name for humans in his 1758 Systema Naturae — 'Homo sapiens' literally means 'wise human.' The offensive slur emerged in the 20th century as a shortened form of 'homosexual,' itself built from the Greek 'homos' + Latin 'sexualis.' The two senses of the word therefore share a Greek root but diverged through completely different historical routes: one through scientific taxonomy, the other through social prejudice.
First known use
1591
1591, in the meaning defined above Noun (2)