Pronunciation: [ˌʌndətˈə͡ʊ] (IPA) 
The word "undertow" is spelled with the prefix "under-" which means "beneath" and the word "tow" which means "pull". It refers to a current underneath the surface of the water that pulls towards the sea. The IPA phonetic transcription for "undertow" is /ʌndərtoʊ/. The stress is on the first syllable and the vowel sound in the second syllable is the diphthong /əʊ/ which represents a blend of the sounds /o/ and /ʊ/.
Undertow is a noun that refers to a strong current of water flowing beneath the surface in the opposite direction of the surface current. It is typically caused by the backwash of waves breaking against the shoreline or structures such as jetties or piers. Undertows commonly occur in coastal areas, especially where there are steeply sloping beaches, and they can pose a risk to swimmers and surfers.
The force of an undertow can be quite powerful, capable of pulling objects, including people, out to sea. It is characterized by a swift and strong inward pull, creating a sensation of being dragged or pulled underneath the water. Undertows are notoriously difficult to identify from the surface, as they do not produce visible waves or ripples. This hidden danger makes them particularly hazardous to unsuspecting individuals in the water.
In terms of its impact on human safety, understanding undertows and learning how to navigate them is crucial. Swimmers and surfers should be mindful of their presence when in the water and be prepared to respond appropriately. It is advisable to avoid swimming in areas known for strong undertows, as well as to pay attention to any warning signs or guidance provided by lifeguards.
Overall, the concept of undertow refers to an underwater current that runs contrary to the surface flow and can potentially pose a danger to those in the water.
A nautical term for any decided undercurrent of water; the backward flow of a wave.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
The word "undertow" originated from the Old English word "undertān", which means "to drag away" or "to carry away from beneath". It is a combination of the prefix "under", meaning "beneath", and the verb "tān", meaning "to pull" or "to drag". Over time, "undertān" evolved into "undertow", referring to the powerful current that pulls objects underwater and away from the shore.
