Who was a sorcerer? In Medieval Latin, sortiarius meant "teller of fortunes by lot; sorcerer," literally "one who influences fate or fortune," from Latin sors (genitive sortis) "lot, fate, fortune."
https://www.etymonline.com/word/sorcery
How does a sorcerer influence fate or fortune? By the use of "witchcraft, magic, enchantment." That´s what sorcery is. What´s the big deal? There´s no human being who can "by himself/herself" influence or tell fate or fortune. Rather, that´s done by invoking supernatural, occult powers to influence human affairs.
The Greek word related to sorcery is pharmakia. “PHARMAKIA . . . primarily signified the use of medicine, drugs, spells; then, poisoning; then, sorcery, . . . See also Rev. 9:21; 18:23. . . . In sorcery, the use of drugs, whether simple or potent, was generally accompanied by incantations and appeals to occult powers, with the provision of various charms, . . . to impress the applicant with the mysterious resources and powers of the sorcerer.” - Vine’s Expository Dictionary of New Testament Words.
Since the power behind "sorcery" are occult powers, i.e.wicked spirits, as time went by, some translations started rendering such word by more comprehensive terms: "spiritism, or spiritistic practices." - Acts 16:16-18.
Usually, most people relate spiritism to witches, crystal-ball readers, voodoists, astrologers etc. However, it is not limited to such professions. Satan has certainly blinded the minds of billions of humans. - 2 Corinthians 4:3, 4.
Have you ever seen religious ministers using "liquids" and "objects" to "bless" people, things etc.? Or to offer "protection" through the latter? Channeling "the dead" for guidance? Praying to "dead saints" for the healing of diseases, and the promising of fulfilling vows, directed to "saints," for success(good luck)? Striving to miraculously speak in "foreign tongues"? All of the aforementioned are different forms of spiritism.- Deuteronomy 18:10-12; 2 Thessalonians 2:9-12; 2Ch 33:6.