What is the etymology of 斥
「斥」 (Baxter-Sagart OC: /*tʰAk/) was originally a character formed by modifying 「宅」 (/*m-tˤak/, dwelling). The modern meaning either originated as a phonetic loan or semantic extension (expand one's dwelling &gt; expand territory &gt; to expel (enemies) &gt; to reprimand &gt; to blame).





時期字體
字形
參考資料




商甲

乙2256合集14206


西周金

尊集成6014


戰國・晉古幣

81古幣文編


戰國・楚簡

190包山楚簡


戰國・楚簡

109望山楚簡1


秦簡

8.11睡虎地秦簡


東漢隸

陰魯峻碑


楷






　　　　　
First, an internal sequence of developments in 「宅」 caused 「宀」 to sometimes be corrupted into 「厂」 or 「广」, forming 「厇」 or 「㡯」, respectively.
　
Next, the inside was phonetically corrupted into 「屰」 (/*ŋrak/).
　　
Further corruptions caused the shape to morph into something that looked identical to 「厈」, then eventually changing into 「斥」.

References:

季旭昇《說文新證》
漢語多功能字庫
小學堂字形演變
國學大師

郭沫若《甲骨文合集》
中國社會科學院考古研究所《殷周金文集成》