Steepen (verb)

To become steeper.

Origin:

From the adjective 'steep' with the suffix '-en'.

Examples:

1. The slope of the hill steepened as it neared the top.
2. The curve in the road steepened, making it more difficult to navigate.
3. As the stocks fell, the yield curve steepened, signaling a bear market.
4. The downward trend in sales continued, with a steepening decline in the final quarter.
5. The climb up the mountain was hard, as the trail steepened with each step.