crested (Adjective) — (heraldry) bearing an heraldic device.
crested (Adjective) — (of a bird or animal) having a usually ornamental tuft or process on the head; often used in combination. ex. "golden crested" ex. "crested iris"
crested (Adjective) — (of a knight's helmet) having a decorative plume.
crested (Verb) — Lie at the top of. ex. "Snow crested the mountains"
crested (Verb) — Reach a high point. ex. "The river crested last night"