English stronghold

← Old English strang (inherited)

← Old English strong (mention)

← English strong (compound)

← English hold (compound)

← Middle English strong-hold (inherited)

← Middle English strong-holde (mention)

← Middle English stranghalde (mention)

← Middle English strong (derived)

← Middle English hōld (derived)

← Proto-Indo-European *strengʰ- (derived)