of things, "to thrust out; force, press, or crowd out; expel," 1560s, from Latin extrudere "to thrust out, drive away," from ex "out, out of" (see ex-) + trudere "to thrust, push," from PIE *treud- "to press, push, squeeze" (see threat). Related: Extruded; extruding.

"the act of extruding; a thrusting or driving out, expulsion," 1530s, formed as a noun of action from past-participle stem of extrudere, from ex "out, out of" (see ex-) + trudere "to thrust, push," from PIE *treud- "to press, push, squeeze" (see threat).

"of or pertaining to extrusion or that which has been extruded," especially in geology, of rock that has been thrust out of the earth by volcanic activity, 1816, from Latin extrus-, past-participle stem of extrudere "thrust out; drive away" (see extrusion) + -ive. Related: Extrusively.

mid-15c., "over-abundant," from Latin exuberantem (nominative exuberans) "superfluous; extraordinary," present participle of exuberare "be abundant, grow luxuriously," from ex, here probably "thoroughly" (see ex-), + uberare "be fruitful," related to uber "udder," from PIE root *eue-dh-r- (see udder). From 1510s as "growing luxuriantly;" figurative use, of affections, joyous emotions, etc., is by 1640s. Related: Exuberantly; exuberate; exuberating.

1570s (intransitive), "to ooze from a body by a natural or abnormal discharge, be secreted," as juice or gum from a tree, pus from a wound, or serous fluid from a blister, from Latin exudare/exsudare "ooze out like sweat," from ex "out, out of" (see ex-) + sudare "to sweat," from sudor "sweat" (see sweat (v.)). Transitive sense "to discharge slowly through the pores, give out gradually as moisture" is by 1755. Related: Exuded; exudes; exuding.

1560s, "to leap up;" 1590s, "to rejoice, triumph," from Middle French exulter, from Latin exultare/exsultare "rejoice exceedingly, revel, vaunt, boast;" literally "leap about, leap up," frequentative of exsilire "to leap up," from ex "out" (see ex-) + salire "to leap" (see salient (adj.)). The notion is of leaping or dancing for joy. Related: Exulted; exulting.

"expressing exultation, rejoicing exceedingly or triumphantly," 1650s, from Latin exultantem/exsultantem (nominative exultans/exsultans) "boastful, vainglorious," present participle of exultare/exsultare (see exult). Related: Exultantly.

"act of exulting, great gladness, triumphant delight," late 14c., exultacioun, from Old French exultacion "joyousness, exultation" and directly from Latin exultationem/exsultationem "a leaping for joy, exultation," noun of action from past-participle stem of exultare/exsultare (see exult). The notion is of leaping or dancing for joy. An Old English word for it was heahbliss "high bliss."