Entries linking to echolocation
mid-14c., "sound repeated by reflection," from Latin echo, from Greek ēkhō, personified in classical mythology as a mountain nymph who pined away for love of Narcissus until nothing was left of her but her voice, from or related to ēkhē "sound," ēkhein "to resound," from PIE *wagh-io-, extended form of root *(s)wagh- "to resound" (source also of Sanskrit vagnuh "sound," Latin vagire "to cry," Old English swogan "to resound"). Related: Echoes. Echo chamber is attested from 1937.
1590s, "position, place; fact or condition of being in a particular place," from Latin locationem (nominative locatio) "a placing," noun of action from past-participle stem of locare "to place, put, set," from locus "a place" (see locus). Meaning "act of placing or settling" is from 1620s. Of tracts of land, "act of fixing the boundaries of by survey," 1718, hence "a bounded or marked-off parcel of ground" (1792). The Hollywood sense of "place outside a film studio where a scene is filmed" is from 1914.
updated on September 03, 2012