Full context:   In his 1951 etymological studies of the word, Onians traces the primary root back to ancient Greek associations with both archery and weaving. In archery, kairos denotes the moment in which an arrow may be shot with sufficient force to penetrate a target. In weaving, kairos denotes the moment in which the shuttle could be passed through threads on the loom. Similarly, in his Kaironomia (1983), E.C. White defines kairos as the "long, tunnel-like aperture through which the archer's arrow has to pass", and as the moment "when the weaver must draw the yarn through a gap that momentarily opens in the warp of the cloth being woven". Both are examples of the precise timing of a decision/action to achieve the best outcome.