英语词源字典 - 在线词源网站

Cinerama (n.)[Cinerama 词源字典]: proprietary name, 1951, from cinema + -rama. Purists point out that the proper formation would be *Cinorama.[Cinerama etymology, Cinerama origin, 英语词源]
dilation (n.): 1590s, formed from dilate on the mistaken assumption that the -ate in that word was the Latin verbal suffix (it is instead part of the stem); the proper form, dilatation, is older (c. 1400).
formal (adj.): late 14c., "pertaining to form or arrangement;" also, in philosophy and theology, "pertaining to the form or essence of a thing," from Old French formal, formel "formal, constituent" (13c.) and directly from Latin formalis, from forma "a form, figure, shape" (see form (n.)). From early 15c. as "in due or proper form, according to recognized form," As a noun, c. 1600 (plural) "things that are formal;" as a short way to say formal dance, recorded by 1906 among U.S. college students.
genocide (n.): 1944, apparently coined by Polish-born U.S. jurist Raphael Lemkin (1900-1959) in his work "Axis Rule in Occupied Europe" [p.19], in reference to Nazi extermination of Jews, literally "killing a tribe," from Greek genos "race, kind" (see genus) + -cide. The proper formation would be *genticide.
Generally speaking, genocide does not necessarily mean the immediate destruction of a nation, except when accomplished by mass killings of all members of a nation. It is intended rather to signify a coordinated plan of different actions aimed at the destruction of essential foundations of the life of national groups, with the aim of annihilating the groups themselves. [Lemkin]
Earlier in a similar sense was populicide (1799), from French populicide, by 1792, a word from the Revolution. This was taken into German, as in Völkermeuchelnden "genocidal" (Heine), which was Englished 1893 as folk-murdering. Ethnocide is attested from 1974 in English (1970 in French).
-ology: word-forming element indicating "branch of knowledge, science," now the usual form of -logy. Originally used c. 1800 in nonce formations (commonsensology, etc.), it gained legitimacy by influence of the proper formation in geology, mythology, etc., where the -o- is a stem vowel in the previous element.
sanhedrim (n.): 1580s, from Late Hebrew sanhedrin (gedola) "(great) council," from Greek synedrion "assembly, council," literally "sitting together," from syn- "together" (see syn-) + hedra "seat" (see cathedral). Abolished at the destruction of Jerusalem, C.E. 70. The proper form is sanhedrin; the error began as a false correction when the Greek word was taken into Mishanic Hebrew, where -in is a form of the plural suffix of which -im is the more exact form.
tune (v.): "bring into a state of proper pitch," c. 1500, from tune (n.). Non-musical meaning "to adjust an organ or receiver, put into a state proper for some purpose" is recorded from 1887. Verbal phrase tune in in reference to radio (later also TV) is recorded from 1913; figurative sense of "become aware" is recorded from 1926. Tune out "eliminate radio reception" is recorded from 1908; figurative sense of "disregard, stop heeding" is from 1928. Related: Tuned; tuning.
vespiary (n.): "wasp's nest," 1816, from Latin vespa "wasp" (see wasp) on model of apiary. A proper formation would be *vespary.