英语词源字典 - 在线词源网站

Boolean (adj.)[Boolean 词源字典]: in reference to abstract algebraic systems, 1851, named for George Boole (1815-1864), English mathematician. The surname is a variant of Bull.[Boolean etymology, Boolean origin, 英语词源]
oleaginous (adj.): 1630s, from French oléagineux (14c.), from Latin oleaginus "of the olive," from olea "olive," alteration of oliva (see olive) by influence of oleum "oil."
oleander (n.): "rose bay," a poisonous evergreen Mediterranean shrub, c. 1400, from Medieval Latin oleander, probably (by influence of Latin olea "olive tree") from Late Latin lorandrum, from Latin rhododendron (see rhododendron), itself altered by influence of Latin laurea "laurel," on resemblance of leaves. This round-about etymology is supported by the French word for it, laurier rose.
poleax (n.): kind of axe used as a weapon or by butchers, c. 1300, pollax, from pol "head" (see poll (n.)) + ax (n.). From notion of beheading or head-splitting, or perhaps from the shape of the ax. Spelling altered 17c. by confusion with pole (n.1)).
poleaxe: "another term for battleaxe (sense 1)", Middle English: related to Middle Dutch pol(l)aex, Middle Low German pol(l)exe (see poll, axe). The change in the first syllable was due to association with pole¹; the first element poll- may have referred to a special head of the axe or to the head of an enemy.