also: えこ
noun
unfairness; partiality; favoritism
Rare or archaic term for unfairness or bias. In modern Japanese, 不公平 or 依怙贔屓 (えこひいき) are more common. Often appears in the compound 依怙贔屓 (えこひいき).
「依估」は古い言葉で、今は「依怙贔屓」の形で使われることが多い。
依估 is an old word; nowadays it is often used in the form 依怙贔屓 (えこひいき).
Rare kanji spelling; the word is more commonly written in kana. The reading いこ is given as the primary reading.
Alternate reading; lists both いこ and えこ. This kana spelling may be encountered.
The exact derivation is uncertain. The kanji 依 (rely on) and 估 (estimate, price) may have been used for their meanings related to biased judgment, but the word is likely an old Japanese term with ateji.