HAPPEN
happen, hap, go on, pass off, occur, pass, fall out, come about, take place
(verb) come to pass; “What is happening?”; “The meeting took place off without an incidence”; “Nothing occurred that seemed important”
happen, materialize, materialise
(verb) come into being; become reality; “Her dream really materialized”
happen, befall, bechance
(verb) happen, occur, or be the case in the course of events or by chance; “It happens that today is my birthday”; “These things befell” (Santayana)
find, happen, chance, bump, encounter
(verb) come upon, as if by accident; meet with; “We find this idea in Plato”; “I happened upon the most wonderful bakery not very far from here”; “She chanced upon an interesting book in the bookstore the other day”
happen
(verb) chance to be or do something, without intention or causation; “I happen to have just what you need!”
Source: WordNet® 3.1
Etymology
Verb
happen (third-person singular simple present happens, present participle happening, simple past and past participle happened)
(intransitive) To occur or take place.
Synonyms: come to pass, Thesaurus:happen
(transitive, archaic) To happen to; to befall.
(intransitive or impersonal, with infinitive) To do or occur by chance or unexpectedly.
(followed by on or upon) To encounter by chance.
Usage notes
• In the sense which indicates a chance occurrence, happen is a catenative verb that takes the to-infinitive. See English catenative verbs
Adverb
happen (not comparable)
(, obsolete or dialect) maybe, perhaps.
Source: Wiktionary
Hap"pen, v. i. [imp. & p. p. Happened; p. pr. & vb. n. Happening.]
Etym: [OE. happenen, hapnen. See Hap to happen.]
1. To come by chance; to come without previous expectation; to fall
out.
There shall no evil happen to the just. Prov. xii. 21.
2. To take place; to occur.
All these things which had happened. Luke xxiv. 14.
To happen on, to meet with; to fall or light upon. "I have happened
on some other accounts." Graunt.
– To happen in, to make a casual call. [Colloq.]
Source: Webster’s Unabridged Dictionary 1913 Edition