"a sharp, metallic, ringing sound," 1590s, from Latin clangor "sound of trumpets (Virgil), birds (Ovid), etc.," from clangere "to clang," echoic (compare clang).
1843, "of or containing acryl," the name of a radical derived from acrolein (1843), the name of a liquid in onions and garlic that makes eyes tear, from Latin acer "sharp" (from PIE root *ak- "be sharp, rise (out) to a point, pierce") + olere "to smell" (see odor) + -in (see -ine (2)). With adjectival suffix -ic. Modern senses often short for acrylic fiber, acrylic resin, etc.
"with knowledge of truth," late 14c., present-participle adjective from know (v.). From c. 1500 as "shrewd, sharp, smart." Related: Knowingly.
"small, sharp surgical instrument," late 14c., launcet, from Old French lancette "small lance" (12c.), diminutive of lance (see lance (n.)).
Old English gielp "boasting, pride, arrogance," from source of yelp (v.). Meaning "quick, sharp bark or cry" is attested from early 16c.
"sharp, shrill cry," 1550s, from screech (v.). Earlier scritch (1510s). In reference to a harsh, squeaking noise made by something, by 1882.