In the monastic chronicles of the monastery of
Lidlum, dated to the fourteenth century, the place appears as
Cadahool. That name probably refers to a place near the old location of the monastery, a little further south of present-day Koehool. A mention from 1429 spells '
t Koudehol, and one from 1511 spells
Caudehoel. There was then a
lock that was called the
Coudehoelstera zyl in 1525. On a sixteenth-century map it is spelled
Cohool. In 1546 the name was written as
Kahoel and
Coldhoe also occurs. The modern spelling
Koehool can already be found on eighteenth- and nineteenth-century maps. The second part of the place name originated from
hol which can mean 'low, swampy place', but also 'inlet or bed'. The first part comes from the Frisian
kald, which can mean 'uninhabited, deserted', but can also mean 'cold'. This could fit an alternative etymology if one considers one other meaning of
kald or the
Dutch variant,
koud: 'insignificant' or 'not much'. ==Sights==