遭 is built from the 辶 (walk / road), 一, 曲, and 日 components.
It belongs to a phonetic family with 槽 and 曹 — they share the 曲 component and the reading ソウ.
A common word using 遭 is 遭う (あう), meaning “to meet, to encounter (undesirable nuance)”.
Don't confuse it with 曹 and 槽.