neap

 
Pronunciation: /niːp/

noun

  • (also neap tide) a tide just after the first or third quarters of the moon when there is least difference between high and low water: neaps occur at 6 a.m. and 6 p.m.

verb

(be neaped)
  • (of a boat) be kept aground or in harbour by a neap tide: a change of wind could leave you neaped

Origin:

late Middle English, originally an adjective from Old English nēp, first element of nēpflōd 'neap flood', of unknown origin