Pronunciation: [ɡɹˈə͡ʊ fˈʊl] (IPA) 
The correct spelling of the word "grow full" is "grateful," which is pronounced ˈɡreɪtf(ə)l. The word contains two syllables, with the primary stress on the second syllable. The "g" at the beginning is pronounced as "g," while the "o" is pronounced as a long "o" sound. The "w" is silent, and the "f" is pronounced as a "v" sound. Lastly, the "u" is pronounced as a quick "schwa" sound. The word means appreciative or thankful.
The term "grow full" refers to the process of fully maturing or reaching maximum capacity, often in relation to plants, living organisms, or physical objects. It signifies the development or expansion of something until it becomes complete or achieves its peak potential.
When applied to plants, "grow full" indicates the stage where they have reached their maximum size or have fully blossomed, suggesting they have achieved optimal growth. This stage is characterized by the plant's ability to produce fruits, flowers, or seeds, denoting the climax of its life cycle.
In the context of living organisms, "grow full" implies that an individual has reached their full physical or mental development. This can refer to humans, animals, or even microorganisms, where they have matured and acquired all the characteristics and capabilities associated with their species.
Regarding physical objects, "grow full" indicates an item has expanded or filled up to its complete capacity. This could describe the maximum quantity of something, such as a container being filled to its brim, a food storage facility reaching its full capacity, or a battery being charged to its maximum level.
Overall, "grow full" encapsulates the idea of growth and development until reaching a state of completeness, whether it pertains to plants, living organisms, or physical objects.
The term "grow full" is not a commonly used phrase or word, so it does not have a specific etymology. However, we can examine the etymology of the individual words "grow" and "full" to gain some understanding.
1. Grow:
The word "grow" originated from the Old English word "grōwan". It has Germanic roots and is related to the Old High German word "gruoen". The Proto-Germanic word from which it derived is "groaną", which means "to grow, increase". Over time, the spelling and pronunciation of "grow" evolved, but its meaning remained consistent.
2. Full:
The term "full" originated from the Old English word "full", which is also related to the Old High German word "fol". Both words share the same Proto-Germanic root, "fullaz", meaning "full or swollen".
