Pictograph of a person standing under the rain (雨), representing the meaning "wait (for rain to stop)", now written as 濡. The person component was later replaced with the phonetic component 而.
需 and 而 don't sound similar in modern Mandarin due to historical phonetic changes. They were more similar
in older Chinese.
Character Evolution
BronzeEarly Western Zhou~1000 BCBronzeLate Western Zhou~800 BCSealWarring States (Chu)475-221 BCSealShuowen~100 ADClericalEastern Han25-220 ADRegularModern