tag-
To touch, handle.
1. Nasalized form *ta-n-g-. tact, tangent, tangible, task, taste, tax; attain, contact, intact, tactoreceptor, tangoreceptor, from Latin tangere, to touch, with derivatives taxāre, to touch, assess (possibly a frequentative of tangere, but probably influenced by Greek tassein, taxai, to arrange, assess), and tāctus, touch.
2. Compound form *n̥-tag-ro-, “untouched, intact” (*n̥-, negative prefix; see ne). entire, integer, integrate, integrity, from Latin integer, intact, whole, complete, perfect, honest.