英语词源字典 - 在线词源网站

indifferently (adv.)[indifferently 词源字典]: c. 1400, from indifferent + -ly (2).[indifferently etymology, indifferently origin, 英语词源]
indigence (n.): late 14c., from Old French indigence "indigence, need, privation" (13c.), from Latin indigentia "need, want; insatiable desire," from indigentem (nominative indigens), present participle of indigere "to need," from indu "in, within" + egere "be in need, want," from PIE *eg- "to lack" (cognates: Old Norse ekla "want, lack," Old High German eccherode "thin, weak").
indigency (n.): 1610s, from Latin indigentia (see indigence).
indigene: 1590s (adj.); 1660s (n.); from French indigène (16c.), from Latin indigena "sprung from the land," as a noun, "a native," literally "in-born" (see indigenous).
indigenous (adj.): 1640s, from Late Latin indigenus "born in a country, native," from Latin indigena "sprung from the land," as a noun, "a native," literally "in-born," or "born in (a place)," from Old Latin indu "in, within" (earlier endo) + *gene-, root of gignere (perf. genui) "beget," from PIE *gen- "produce" (see genus).
indigent (adj.): c. 1400, from Old French indigent, from Latin indigentem (see indigence). As a noun, "poor person," from early 15c.
indigestible (adj.): late 15c., from in- (1) "not, opposite of" + digestible; or else from Late Latin indigestibilis. Related: Indigestibility.
indigestion (n.): late 14c., from Old French indigestion (13c.), from Late Latin indigestionem (nominative indigestio), from in- "not, opposite of" (see in- (1)) + digestionem (see digestion). An Old English word for it was unmeltung.
indignance (n.): 1580s; see indignant + -ance. Indignancy is attested from 1790.
indignant (adj.): 1580s, from Latin indignantem (nominative indignans) "impatient, reluctant, indignant," present participle of indignari "to be displeased at, be indignant" (see indignation). Related: Indignantly.
indignation (n.): c. 1200, from Old French indignacion or directly from Latin indignationem (nominative indignatio) "indignation, displeasure," noun of action from past participle stem of indignari "regard as unworthy, be angry or displeased at," from indignus "unworthy," from in- "not, opposite of" (see in- (1)) + dignus "worthy" (see dignity).
indignity (n.): 1580s, "unworthiness," also "unworthy treatment; act intended to expose someone to contempt," from Latin indignitatem (nominative indignitas) "unworthiness, meanness, baseness," also "unworthy conduct, an outrage," noun of quality from indignus "unworthy" (see indignation). Related: Indignities.
indigo (n.): 1550s, from Spanish indico, Portuguese endego, and Dutch (via Portuguese) indigo, all from Latin indicum "indigo," from Greek indikon "blue dye from India," literally "Indian (substance)," neuter of indikos "Indian," from India (see India). As "the color of indigo" from 1620s. Replaced Middle English ynde (late 13c., from Old French inde, from Latin indicum). Earlier name in Mediterranean languages was annil, anil (see aniline).
indirect (adj.): late 14c., from Middle French indirect (14c.) or directly from Late Latin indirectus, from in- "not, opposite of" (see in- (1)) + directus (see direct). Related: Indirectness.
indirection (n.): c. 1600, from indirect + -ion.
indirectly (adv.): mid-15c., from indirect + -ly (2).
indiscernible (adj.): 1630s, from in- (1) "not, opposite of" + discernible. Related: Indiscernibly; indiscernibility.
indiscipline (n.): 1783, from in- (1) "not, opposite of" + discipline (n.). Indisciplined as a past participle adjective is attested from c. 1400.
indiscreet (adj.): "imprudent, not discrete" (early 15c.) and indiscrete "not containing distinct parts" (c. 1600) are both from Latin indiscretus "unseparated; indistinguishable, not known apart," the former via an Old French or Medieval Latin secondary sense. From in- "not" (see in- (1)) + discreet. Related: Indiscreetly; indiscreetness.
indiscrete (adj.): see indiscreet. Related: Indiscretely.