Meaning

noun New Zealand runner who in 1975 became the first person to run a mile in less that 3 minutes and 50 seconds (born in 1952)

noun United States writer (born in 1944)

noun a person who travels by foot

originEtymology tree English Walk(ing Liberty) 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 Walker From Walk(ing Liberty) + -er.

Etymology from Wiktionary, CC BY-SA 3.0