recur

1. Of an event, situation, etc.: to appear or happen again, especially repeatedly.Examples: "The bullet had grazed the optic nerve. […] The oculist had warned him that the trouble might recur, that he ought to have remained under observation. Well, it had recurred about four months ago."Synonyms: recrudesce, recourse, recur, rehappen, reoccur, repeatintransitive

2. (dated) To speak, think, or write about something again; to go back or return to a memory, a subject, etc.Examples: "But firſt I ſhall recurre, and give a touch upon the nature of Gravity."; "But before vve proceed to vvhat paſſed on his Arrival in the Kitchin, it vvill be neceſſary to recur to vvhat had there happened ſince Partridge had firſt left it on his Maſter's Summons."; "Again am I recurring to a ſubject I vviſh to quit. But ſince I cannot, I vvill give my pen its courſe—Pen, take thy courſe."datedintransitive

3. (archaic) Followed by to, or (Scotland, obsolete) on or upon: to have recourse to someone or something for assistance, support, etc.; to appeal, to resort, to turn to.Examples: "[I]f his Grace vvere minded, or vvould intend to do a thing inique or injuſt, there vvere no need to recurr unto the Pope's Holineſe for doing thereof."; "And surely here I admire the goodnes of God towards our Nation, that he would Saint Austin [Augustine of Hippo] should enquire such small matters of S. Gregory, and that his questions should remaine to our dayes, both to shew vs by our first Apostle what account we should make of the resolution of the Sea Apostolick, and […] in all difficulties recur to her, […]"; "Others have been ſo blind in deducing the originall of things, or delivering their ovvne beginnings, that vvhen it hath fallen into controverſie they have not recurred unto Chronologie or the records of time, but betaken themſelves unto probabilities, and the conjecturalities of Philoſophy."archaicintransitive

4. (computing) Synonym of recurse (“to execute a procedure recursively”).Synonyms: recurseintransitive

5. (mathematics) Often in the form recurring following a number: of a numeral or group of numerals in a decimal fraction: to repeat indefinitely.Examples: "One-third can be written in decimal form as 0.3333 …, or point three-recurring."; "CIRCULATING Decimals, or Recurring Decimals, are those that consist of a repetition of a small number of digits, as 646464, &c. 4127127127, &c.; in fact, every decimal that is not finite, is a circulating decimal, or is such, that if continued far enough, the same figures will again recur; but it is only those, of which the periods of circulation consist of a few figures, that receive generally the definition of circulating decimals."intransitive

6. (obsolete)Examples: "[H]er conſtancy beganne to ſtagger, and her honeſty had enough to doe, recurring to her eyes to containe them, leſt they ſhould giue any demonſtration of the amorous compaſsion vvhich Lotharios vvordes and teares had ſtirred in her breaſt."; "Cycle of the Sun is the revolution of 28 years, Cycle of the Moon the revolution of 19 years, in which time both of their motions recur to the ſame point."; "For as in the body natural the amputation and dock of one member forces the bloud and ſpirits that therein reſide vvhen fixed, to recur to the heart, and there to ſuccour it in the abſence of that part, ſo is the body politique, in this ſenſe Intentio ſupplere debet defectum [the intention must supply the deficiency], […]"intransitiveobsolete