The word "tutorial" comes from the Latin tūtōrius, meaning "of a guardian" or "of a watcher", combined with the English suffix "-al" that forms adjectives.   This adjective was first used in the mid-1700s to describe things related to a legal guardian or tutor. The noun form, referring to a period of instruction or a how-to guide, developed later in the 19th and 20th centuries. 

The word "tutorial" was first used in English around the mid-1700s, with the earliest evidence in the Oxford English Dictionary (OED) from 1766, according to the OED.  The evolution of the meaning of tutorial is as follows: 1700s (adjective): "of, pertaining to, or done by a legal guardian", 1820s (adjective): "of, pertaining to, or done by a teacher or instructor", 1923 (noun): "a period of instruction to pupils", 1978 (noun): "a printed account or explanation of something for purposes of instruction," especially in reference to computers.  

Examples of "tutorial" used in a sentence: 
"I've got a French tutorial at 11 o'clock" 
"On YouTube you can find several tutorials on how to cut hair at home" 
"During the tutorial session, she was given the list of words to read." 
"An online tutorial gives basic instructions for using the software." 
"The professor was offering a tutorial in her office a week before the exam." 
"We offer tutorial instruction for students preparing for the examination." 

Just the facts:

TUTORIAL Definition & Meaning - Merriam-Webster

TUTORIAL Synonyms | Collins English Thesaurus