Possibly borrowed from an earlier Scythian or Thracian word. The greek term κάνναβις, or kánnabis, is the oldest attested form (1)(2)
A diverse spinable, smokable plant that can also be ate and converted into oils.

Hemp is one of the earliest plants to have been cultivated (3)
The Oki Islands of Japan contained cannabis achenes from about 10,000 years ago. Probably signifying the uses of the plant. The plant also archaeologically dates back to neolithic China. With hemp fiber imprints found on Yangshao pottery, dating from 7000 years ago. (4)(5)

Hemp is used to make a wide range of products (6)
It was one of the first plants to be spun into usable fiber. (7)

Archaeological evidence suggests early use for fiber (e.g., textiles, ropes) and seeds (as food)
It’s good for making fiber: strong stalks for cordage, nets, fishing lines, clothing, and textiles. Like flax stems, especially if you soak it in water.

Breeders focus on tall, sturdy stalks for fiber production; and, larger seeds for food and oil
Faster growth and adaptation to various climates.

Its believed cultivation spread from Asia, to Europe, the Middle East, and later Africa and the Americas
The seeds are also rich in protein and fatty acids. And oils can be extracted from the seeds, and used for cooking, lighting, and preservation.

The domestication of hemp, κάνναβις, or kánnabis 10,000 years ago was a crucial step in human development. It was turning point of a wild plant into a versatile human resource for survival, technology, and culture.

Cite: 1) Mallory JP (1997), JP Mallory, DQ Adams (eds.), Encyclopedia of Indo-European Culture (http
s://books.google.com/books?id=tzU3RIV2BWIC&q=Encyclopedia%20of%20Indo-European%2
0Culture&pg=PA266) (Illustrated ed.), London, UK: Taylor & Francis, p. 266,
ISBN 978-1-884964-98-5, archived (https://web.archive.org/web/20240907193505/https://book
s.google.com/books?id=tzU3RIV2BWIC&q=Encyclopedia%20of%20Indo-European%20Culture&pg=PA266#v=snippet&q=Encyclopedia%20of%20Indo-European%20Culture&f=false)

2) Adams DQ (2006), JP Mallory, DQ Adams (eds.), The Oxford Introduction to Proto-Indo-European and the Proto-Indo-European World (https://books.google.com/books?id=lzilBQAAQ
BAJ&q=oxford+dictionary+indo-european), Oxford University Press, p. 166,
ISBN 978-0-19-105812-7, archived (https://web.archive.org/web/20240401151323/https://book
s.google.com/books?id=lzilBQAAQBAJ&q=oxford+dictionary+indo-european#v=snippet&q=oxf
ord%20dictionary%20indo-european&f=false) from the original on 1 April 2024

3) “Information paper on industrial hemp (industrial cannabis)” (https://web.archive.org/web/20080
723143556/http://www2.dpi.qld.gov.au/hemp/16241.html). Department of Primary Industries and Fisheries, Queensland Government. Archived from the original (http://www2.dpi.qld.gov.au/hemp/16241.html) on 23 July 2008. Retrieved 5 July 2008.

4) Ethan Russo (August 2007). “History of cannabis and its preparations in saga, science, and sobriquet” (https://doi.org/10.1002%2Fcbdv.200790144). Chemistry & Biodiversity. 4 (8): 1614–doi:10.1002/cbdv.200790144 (https://doi.org/10.1002%2Fcbdv.200790144).
PMID 17712811 (https://pubmed.ncbi.nlm.nih.gov/17712811). S2CID 42480090 (https://api.semanticscholar.org/CorpusID:42480090)

5) Stafford, Peter (1992). Psychedelics Encyclopedia (https://books.google.com/books?id=Ec5hNgYWHtkC). Berkeley, CA, USA: Ronin Publishing. ISBN 978-0-914171-51-5

6) Barber, E. J. W. (1992). Prehistoric Textiles: The Development of Cloth in the Neolithic and Bronze Ages with Special Reference to the Aegean. Princeton University Press. pg. 17

7) Britt Erickson (4 November 2019). “USDA releases hemp production requirements” (https://dx.doi.org/10.1021/cen-09743-polcon4). C&EN Global Enterprise. 97 (43): 17. doi:10.1021/
cen-09743-polcon4 (https://doi.org/10.1021%2Fcen-09743-polcon4). ISSN 2474-7408 (https://search.worldcat.org/issn/2474-7408). S2CID 213055550 (https://api.semanticscholar.org/CorpusID:213055550)

Bibliography:
Herodotus. Histories. Vol. IV. 73–75

Robert Deitch (2003). Hemp: American History Revisited: The Plant with a Divided History (https://archive.org/details/isbn_9780875862064). Algora Publishing. p. 219 (https://archive.org/details/isbn_9780875862064/pag