scary

The word 'scary' is a relatively modern English formation, emerging in the 16th century. It is built directly upon the native English verb 'scare', which itself has a robust Germanic pedigree, tracing back to the Old Norse 'skirra' meaning 'to frighten'. The suffix '-y' is a prolific and ancient adjective-forming element in English, originating from the Old English '-ig', which imparts the meaning 'characterized by' or 'inclined to'. Thus, the literal construction of 'scary' is transparent: it describes something that is 'characterized by scaring' or 'inclined to cause fright'. Over time, its meaning expanded from simply 'causing fear' to also informally describe a person who is easily frightened.

Structure: scar (frighten) + y (adjective suffix) - scar: Derived from the English verb 'scare', from Middle English 'skerren', of Norse origin (Old Norse 'skirra' meaning 'to frighten'). - y: An English adjective-forming suffix, from Old English '-ig', meaning 'characterized by; full of'.