To live with anxiety is to live with a leech that saps you of your energy, confidence, and chutzpah.
If neglected, any system can become a host upon which all other systems will leech.
The paraschites had taken the little bag with the strip of papyrus, and heard the leech to the end.
But she clung like a leech to Sylvia with the black handkerchief in her grip.
I may give another example—rare, no doubt—of leech's having used a suggested subject.
He adhered to Rose like a leech, and followed her about like a little dog.
Ilaria had left him in care of the leech, a little Greek with restless, ever-shifting eyes.
“Yes, and hung onto me like a leech of a Jew ever since,” the man muttered.
How remarkably, for instance, has Mr. leech observed the hair-dressers of the present age!
To each arm hung a bailiff, and a third clung like a leech to my legs.
"bloodsucking aquatic worm," from Old English læce (Kentish lyce), of unknown origin (with a cognate in Middle Dutch lake). Commonly regarded as a transferred use of leech (n.2), but the Old English forms suggest a distinct word, which has been assimilated to leech (n.2) by folk etymology [see OED]. Figuratively applied to human parasites since 1784.
obsolete for "physician," from Old English læce, probably from Old Danish læke, from Proto-Germanic *lekjaz "enchanter, one who speaks magic words; healer, physician" (cf. Old Frisian letza, Old Saxon laki, Old Norse læknir, Old High German lahhi, Gothic lekeis "physician"), literally "one who counsels," perhaps connected with a root found in Celtic (cf. Irish liaig "charmer, exorcist, physician") and Slavic (cf. Serbo-Croatian lijekar, Polish lekarz), from PIE *lep-agi "conjurer," from root *leg- "to collect," with derivatives meaning "to speak" (see lecture (n.)).
For sense development, cf. Old Church Slavonic baliji "doctor," originally "conjurer," related to Serbo-Croatian bajati "enchant, conjure;" Old Church Slavonic vrači, Russian vrač "doctor," related to Serbo-Croatian vrač "sorcerer, fortune-teller." The form merged with leech (n.1) in Middle English, apparently by folk etymology. In 17c., leech usually was applied only to veterinary practitioners. The fourth finger of the hand, in Old English, was læcfinger, translating Latin digitus medicus, Greek daktylus iatrikos, supposedly because a vein from that finger stretches straight to the heart.
leech 1 (lēch)
Any of various chiefly aquatic bloodsucking or carnivorous annelid worms of the class Hirudinea, one species of which (Hirudo medicinalis) was formerly used by physicians to bleed patients. v. leeched, leech·ing, leech·es
To bleed with leeches.
A human parasite (1784+)
: insisted that MCI was not leeching off the successful campaign of its competition (1960s+)