noun / verb

lag

LAG/læɡ/

Falling behind an expected pace or response time.

The tired runner lags several strides behind her companion.

Two recreational runners move in the same direction along a simple path.

Etymology

Early uses include a noun meaning “last person” and a verb meaning “fail to keep pace,” though their relationship is uncertain. Falling behind remains central to the modern sense.

In context

Love Nature: Predators33:35

So remaining in the herd is important. Sick individuals or youngsters that lag behind are prime targets.

Springbok & Impala: The Unsung Heroes of Africa’s Plains | Wildlife Icons 106

More examples

Sales lag behind our projections this month.
There is a noticeable lag between clicking and seeing a response.
Production lags can leave stores short of supplies.

Forms

lag · lags · lagged · lagging

Similar words

delay: Emphasizes waiting or lateness rather than falling behind a pace.
trail: Means following behind someone, without necessarily missing an expected pace.