Czech tisíc

← Proto-Balto-Slavic *tuHsontis (inherited)

← Proto-Indo-European *tuHsont- (inherited)

← Proto-Indo-European *tuHsenti- (mention)

← Proto-Slavic *tysǫti (inherited)

← Proto-Slavic *tysęti (mention)

→ Czech tisíciletí (affix)

→ Czech osmitisícovka (affix)

→ Czech sedmitisícovka (affix)