Meaning

verb catch sight of

originFrom Middle English aspien, espien (“to make covert observations of (a person or place) with hostile intent, to spy on; to seek to discover by spying; to act as a spy; to catch sight of, see; to look over, observe; to wait in ambush, to ambush; to plot against; to look for, seek to find; to inquire or look into, investigate; to discover, find”) [and other forms], from Old French espier (“to…

Etymology from Wiktionary, CC BY-SA 3.0