英语词源字典 - 在线词源网站

happy [happy 词源字典]: happy: [14] The Old and Middle English word for ‘happy’ was what in modern English has become silly. This began to change its meaning around the 15th century, and obviously an opportunity began to open up for an adjective expressing ‘contentment’ (as opposed to positive ‘joy’, denoted then by glad, fain, and joyful). The gap was partly filled by a weakening in the meaning of glad, but waiting in the wings was happy, a derivative of the noun hap ‘chance, luck’ (source of happen), which when it was coined in the 14th century meant ‘lucky, fortunate, prosperous’.

The main modern sense ‘highly pleased or contented’ developed in the early 16th century.
=> happen[happy etymology, happy origin, 英语词源]
ream: ream: English has two distinct words ream. The one denoting an amount of paper [14] comes via Old French remme from Arabic risma ‘bundle’, a derivative of the verb rasama ‘collect into a bundle’. Ream ‘make or enlarge a hole’ [19] may be the same word as Middle English reme ‘open up, make room’, which goes back to Old English ryman ‘widen’, a derivative of the same base as English room.
=> room
begin (v.): Old English beginnan "to begin, attempt, undertake," a rare word beside the more usual form onginnan (class III strong verb; past tense ongann, past participle ongunnen); from bi- (see be-) + West Germanic *ginnan, of obscure meaning and found only in compounds, perhaps "to open, open up" (compare Old High German in-ginnan "to cut open, open up," also "begin, undertake"), with sense evolution from "open" to "begin." Cognates elsewhere in Germanic include Old Frisian biginna "to begin," Middle Dutch beghinnen, Old High German beginnan, German beginnen, Old Frisian bijenna "to begin," Gothic duginnan.
open (v.): Old English openian "to open, open up, disclose, reveal," also intransitive, "become manifest, be open to or exposed to," from Proto-Germanic *opanojan (cognates: Old Saxon opanon, Old Norse opna "to open," Middle Dutch, Dutch openen, Old High German offanon, German öffnen), from the source of open (adj.), but etymology suggests the adjective is older. Open up "cease to be secretive" is from 1921. Related: Opened; opening.
ream (v.): "to enlarge a hole," 1815, probably a southwest England dialectal survival from Middle English reme "to make room, open up," from Old English ryman "widen, extend, enlarge," from Proto-Germanic *rumijan (cognates: Old Saxon rumian, Old Norse ryma, Old Frisian rema, Old High German rumen "to make room, widen"), from *rumaz "spacious" (see room (n.)). Slang meaning "to cheat, swindle" first recorded 1914; anal sex sense is from 1942. To ream (someone) out "scold, reprimand" is recorded from 1950.