The term trophic is from Ancient Greekτροφικός (trophikós) meaning "pertaining to food or nourishment", here used to mean "growth"; this is the same origin as atrophy. This should not be confused with tropic, as in the similar-sounding tropic hormone – the words and concepts are both unrelated.
The term trophic originates from Ancient Greek τροφικός (trophikós), signifying "pertaining to food or nourishment," and it pertains to growth; this is akin to atrophy but unrelated to tropic, which refers to a hormone.