anacoluthon

英 [,ænəkə'luːθɒn; -θ(ə)n] 美[,ænəkə'lʊθɑn]

1. an abrupt change within a sentence from one syntactic structure to another

anacoluthon (n.): "want of grammatical sequence; changing constructions in mid-clause," 1706, from Latinized form of Greek anakoluthon, neuter of anakolouthos "inconsequent," from an- "not" (see an- (1)) + akolouthos "following," from copulative prefix a- + keleuthos "way, road, track, path" (see celerity).