Strong's:θάρσος boldness (subjectively)Derivation: akin (by transposition) to θράσος (daring);KJV Usage: courage.
TBESG:θάρσοςcourage/confidenceG:N-N1. courage, boldness , [8th/7th c.BC], attic; θ. τινός courage to do a thing, [6th/5th c.BC, Refs 5th c.BC] 2. that which gives courage , θάρση grounds of confidence , [Refs 5th c.BC, 5th/4th c.BC] 3. in bad sense, audacity , [8th/7th c.BC]: cf. θράσος. (ML)
θάρσος tharsos thar'-sos Akin (by transposition) to θράσος thrasos (daring); boldness (subjectively)KJV Usage: courage.
θαρσέω tharseō thar-seh'-o From G2294; to have courage KJV Usage: be of good cheer (comfort). Compare G2292.