wordxtr: command not found

Maybe Your $PATH variable doesn't contain the default paths? echo $PATH should give something like:

[root@server ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin

If it's empty, You may set the PATH variable with this command

export PATH="/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

On CentOS possible default full paths are:

/usr/bin/wordxtr - from package: wordxtr

You may install the required package with command yum install {package}

Error in other languages:
wordxtr: bevel nie gevind nie
wordxtr: comandă negăsită
wordxtr: comando não encontrado
wordxtr: commande introuvable
wordxtr: command not found
wordxtr: käsku ei ole
wordxtr: không tìm thấy lệnh
wordxtr: komanda nerasta
wordxtr: Kommando nicht gefunden.
wordxtr: kommandot finns inte
wordxtr: komut yok
wordxtr: nie znaleziono polecenia
wordxtr: níor aimsíodh an t-ordú
wordxtr: no se encontró la orden
wordxtr: no s'ha trobat l'ordre
wordxtr: opdracht niet gevonden
wordxtr: parancs nem található
wordxtr: perintah tidak ditemukan
wordxtr: príkaz nenájdený
wordxtr: příkaz nenalezen
wordxtr: команда не найдена
wordxtr: командата не е открита
wordxtr: 命令找不到
wordxtr: コマンドが見つかりません