Meaning

noun a holdup man who stops a vehicle and steals from it

noun someone who uses force to take over a vehicle (especially an airplane) in order to reach an alternative destination

originEtymology tree English hijack Proto-Indo-European *-yósder. Proto-Italic *-āzijos Latin -āriusnom. Latin -āriusbor. Proto-Germanic *-ārijaz Proto-West Germanic *-ārī Old English -ere Middle English -ere English -er English hijacker From hijack + -er.

Etymology from Wiktionary, CC BY-SA 3.0