Etymology
Advertisement
vein (n.)
c. 1300, from Old French veine "vein, artery, pulse" (12c.), from Latin vena "a blood vessel," also "a water course, a vein of metal, a person's natural ability or interest," of unknown origin. The mining sense is attested in English from late 14c. (Greek phleps "vein" had the same secondary sense). Figurative sense of "strain or intermixture" (of some quality) is recorded from 1560s; that of "a humor or mood, natural tendency" is first recorded 1570s.
Related entries & more 
Advertisement
venule (n.)
"small vein," 1850, from Latin venula, diminutive of vena "vein" (see vein).
Related entries & more 
venous (adj.)
1620s, from Latin venosus "full of veins," from vena (see vein).
Related entries & more 
venation (n.)
"arrangement of veins," 1640s, of plant structures, noun of state from Latin vena "vein" (see vein). Related: Venational.
Related entries & more 
intravenous (adj.)
"in or occurring within a vein," 1847, from intra- "within, inside" + Latin venous, from vena "vein" (see vein). Related: Intravenously.
Related entries & more 
Advertisement
phlebitis (n.)

"inflammation of a vein," 1820, medical Latin, from phlebo- "vein" + -itis "inflammation."

Related entries & more 
varices (n.)
plural of varix "dilated vein" (c. 1400), from Latin varix "a varicose vein," which de Vaan derives from varus "bent outward, bow-legged," which is of uncertain origin (see vary).
Related entries & more 
mother lode 

"important vein of an ore or mineral in rock," 1849, from mother (n.1) + lode (n.); said to be a translation of Mexican Spanish veta madre, a name given to rich silver veins. The American use is first in reference to a conspicuous vein of quartz rich in gold discovered during the gold rush in the Sierra Nevada of California. The colloquial or figurative sense of "richest source of something" is by 1916.

Related entries & more 
mainline (v.)

also main-line, "inject (drugs) intravenously," 1934, from main line in American English slang sense "principal vein into which drugs can be injected" (1933).

Related entries & more 
varicose (adj.)
early 15c., from Latin varicosus "with dilated veins," from varix (genitive varicis) "dilated vein," from varus "bent outward, bow-legged," which is of uncertain origin (see vary).
Related entries & more