haply

"Haply" is an archaic adverb that usually means "perhaps," "maybe," or "possibly." In some older uses, it can also mean "by chance" or "accidentally." It is rare in modern conversation, so when it appears, it gives writing an old, literary feel.

The word comes from hap, meaning chance, luck, or fortune. That history helps explain why it sometimes carries a sense of uncertainty shaped by luck or circumstance. Still, its basic meaning is often simply the same as "perhaps," especially in older poems and plays.

It appears often in classic literature, especially Shakespeare. In Romeo and Juliet, Juliet says, "I will kiss thy lips; haply some poison yet doth hang on them." There the meaning is close to "perhaps" or "by chance": maybe some poison still remains.

Today, most writers would not use "haply" unless they want an antique or poetic tone. In normal modern English, "perhaps," "maybe," or "possibly" are the natural choices. So if you meet it in a text, read it as an old-fashioned way to mark possibility, and sometimes chance as well.