Why do we need to have names for people and places? Actually we don't need to have names but it's highly convenient to have "unique identifying sounds" to refer to a person or place; otherwise there would be a lot of "him" and "there" to confuse people.
A short story: You washed up on a deserted island as a baby. What's your name? You don't have one because there is no one there to call out and refer to you.
One day, an animal washes up. You call it "Animal".
The next day, another animal washes up and so you have to make a distinction between them. You call one "Dog" and the other one "Cat" as they happen to be a dog and cat.
While wandering, you find a woman who was also washed up as a baby. You call her "Woman" and she calls you "Man".
This is all in the language that you are inventing over time.
Several hundred years later, the island is discovered by explorers. After establishing language translation, they ask for the names of everything.
Not surprisingly, in your language, your tribe is named "People", the river is named "River" and a volcano is named "Volcano". There are men and women with names like "Tall", "Dark", "Handsome", "Pearl", "Bosom" and "Fury".
Actually, all names began as just descriptions to uniquely identify a person or place. For example, "Adam" means "a Man" in Hebrew. Most cultures still retain the meanings of people's names like "fragrant flower" or "tall leaf" or "red eagle" or "moonlight".
Many places have names like "New-Town" or "Weigh-Bridge" or "Hills-Borough" or "West-Hamlet".
As populations increase, names are not so unique anymore and so a second-name becomes needed from which there are many sources:-
▪ from a parent's name: eg. Bjorn-son, bin Abdullah, Jacobs-dottir, fitz-Patrick, Abraham-ovich, Amund-sen;▪ from a clan name: eg. Lee, Campbell, Chopra;▪ by vocation: eg. smith, miller, baker, silver-man;▪ by place description: eg. ford, marsh, hill, dell;▪ by place name: eg. da Vinci, van Gogh, el Baghdadi, de Albuquerque, al-Razi.Before we go further, please note that I use the terms Given-Name and Family-Name loosely. Not everybody has their personal names in 2 distinct parts. Some cultures us the terms First-Name and Sur-Name (Sur means second). Others may put the Family-Name first. Many cultures do not use Family-names but have other systems: Perhaps patronymic or by clan or something else.
Nearly all given-names are just descriptions.
This is more obvious with names where the origin of the name is in a language still spoken by them. Examples would be "elegant bird" or "bright hero" or "sitting bull" or "little dragon". These are easily read in their originating language and understood to be descriptions.
This is not so obvious in names where the origin of the name is from a language not spoken by them; or perhaps a language not spoken anymore.
For example, here are the names of two brothers who were Apostles in Christianity. The source language was likely Akkadian; which then carried over into the other semitic languages; and then into modern languages:-
Name description = "God is Gracious" -&- "He succeeds next"
Arabic - Yahya & Ya'qub
Hebrew - Yeochannan & Ya'aqobh
Greek - Ioannis & Iakob
Latin - Iohannes & Iacobus
German - Johann & Jacob
Russian - Ivan & Yakov
Spanish - Juan & Iago*
Italian - Giovanni & Giacomo
French - Jean & Jacques
Irish - Sean & Seamus
Nearly all family-names are just groups.
Grouping people by family is very convenient, especially for governments to differentiate between people. Of course, the family-name has to have a origin and there are many such origins.
The table below shows 5 most common Chinese surnames. They represent more than 400 million people.
Clan Mandarin Cantonese Hokkien
王 Wang Wong Ong
李 Li Lee Li
張 Zhang Chong Teo
劉 Liu Lau Low
陳 Chen Chan Tan