I have posted before about the dangers of students picking the wrong meaning from a dictionary or translator, because many words have multiple meaning or senses. Sometimes the two words are related, sometimes they’re not.
Today, a sentence included patient as an adjective. One student used his dictionary/translator, then about a minute later said “What does this sentence mean?”. I said “You wrote down that word. You tell me what it means.” He said “A sick person”.
Interestingly, patient-noun = a sick person and patient-adjective = bearing with fortitude without complaint are related, through Latin pati, patiens to undergo, suffer, bear. A patient is someone who is suffering illness or injury. They are patient if they do so without complaint, but a patient can be very impatient (and many are). Conversely, a doctor can be patient (and, at times, a patient) or impatient.
The relationship between patient-noun and patient-adjective may not be obvious, but the two words share the same form. Also today, another student said that the adjective related to happiness is happen (and immediately realised their mistake). Happen is not an adjective, but, surprisingly, is related to happy and happiness. The connection is the very old (1150-1200) noun hap, meaning one’s lot or luck – something that occurs for some reason. Happen dates from 1300-1350 and means the actual occurrence of a hap. Happy emerged at the same time and means the feeling resulting from a fortunate occurrence – not the feeling resulting from any occurrence. Finally, happiness dates from 1520-30. Generally speaking, the more basic form came first and the more affixed form came later (though there is also the opposite process of back-formation). Hap is now a very rare word, alongside mayhap, but perhaps (by lot or luck) and maybe are very common.