heighten

Etymology

From Middle English heightenen, hyghtenen, equivalent to height + -en (verbal suffix).

verb

1. To make high; to raise higher; to elevate.
   Black Bridge, near Machynlleth, is being heightened by one metre in a £3.6 million project to reduce delays caused by flooding. June 2 2021, “Network News: Cambrian Line bridge is raised”, in RAIL, number 932, page 23
2. To advance, increase, augment, make larger, more intense, stronger etc.
   to heighten beauty
   to heighten a flavor or a tint
   to heighten awareness
   to heighten tension
   the excitement heightened
   “That’s heightened by the impact of climate change,” she added. File:“That’s heightened by the impact of climate change,” she added.ogg
   If Mr Brown chooses, he could raise his estimate of the economy's "trend" rate of growth in the coming years and so heighten his hopes of tax revenues. 6 December 2006, Ashley Seager, “Employment rise gives chancellor a boost”, in The Guardian