infancy
稺 centers on the state of being very young or immature: infancy, childhood, or a lack of full development.
稺 is a variant form of 稚, combining 禾 (grain) with a phonetic component that also suggests young or late-ripening grain. The exact historical development of the right side 屖 is uncertain, but it likely contributed the sound and the idea of immaturity.
The left side 禾 is grain, and the right side 屖 looks like a young plant still under a protective cover (尸) with a sharp, undeveloped tip (辛). Picture a grain seedling that hasn't yet matured: it's still in its infancy.
For チ, imagine a tiny child (infancy) reaching for a piece of cheese: cheese -> チ, and the child is too young to eat it alone.