from Middle English ensensen
from Middle French ensenser
In English, there is a word insense, which was originally defined exactly as stated here, in the lucid definition. However, the in- prefix means "not, opposite of, without" which makes it extremely unfitting for the defined meaning. Thus, the word ensense is more logical. Besides, etymologically, it anyway stems from ensensen in Middle English or ensenser in Middle French. Both are with en-, not in-.
~☉~ | lucid definition; added layer of lucidity, or aethereal context |
⚜ | classic definition |
☣ | artificium definition; usually words which have undergone a warped evolution, or a complete perversion of the original sense |