When does semantic change lead to semantic loss?

Semantic change proceeds via an A > A/B (> B) trajectory ( Traugott & Dasher 2002 ). While semantic extension (i.e., A > A/B) is now relatively well-understood, semantic loss (i.e., A/B (>B)) is not. This article argues that the mechanism of semantic extension is a determinant of the likelihood of loss. Specifically, loss is more likely following extension through inference-driven metonymy than following metaphorical extension. This is because metaphorically related senses tend to be contextually more distinct, which better supports polysemy sustenance. Conversely, because inference-driven extensions typically rely on bridging contexts, related senses often occur in overlapping contexts. This makes loss of the source sense more likely following extension. Evidence to support this argument is drawn from different corpus-based case studies into the semantic development of the English adjectives bright , dumb , narrow , and strange , and Dutch eng ‘frightening’.