'tip-growing' originates from the combination of 'tip,' meaning the end or extremity of something, and 'growing,' derived from Old English 'grōwan,' meaning to grow or increase.

'tip' and 'growing' combined in modern English to describe a specific type of growth pattern.

Initially, 'tip' and 'growing' were used separately, but over time they combined to describe growth occurring at the extremity of an organism.