'fearful-eyed' originates from the combination of 'fearful' and 'eyed', where 'fearful' means 'full of fear' and 'eyed' refers to having a particular type of eyes.

'Fearful' comes from Old English 'fǣrful', and 'eyed' is derived from the Middle English 'eyed', meaning having eyes of a specified kind.

Initially, it meant 'having eyes full of fear', and this meaning has largely remained the same in modern usage.