self-illadj.n.
/ˌsɛlfˈɪl/, U.S. /ˌsɛlfˈɪl/ Harmful to oneself. Obsolete. rare.
ΘΚΠ
the mind > goodness and badness > harmfulness > [adjective] > to oneself
self-ill1633
the world > action or operation > harm or detriment > [adjective] > harmful or injurious > to or for some thing or person > to oneself
self-ill1633
foot-shooting1984
1633 P. Fletcher Poeticall Misc. 58 in Purple Island Live each of other firmly lov'd, and loving; As farre from hate, as self-ill, jealousie.
B. n.
Injury or harm done to oneself. Also occasionally as a count noun. Now rare (poetic in later use).
ΚΠ
1711 Ld. Shaftesbury Characteristicks II. ii. 172 Since every vicious Action must..help towards this Mischief, and Self-Ill; it must follow, That every vicious Action must be Self-injurious and Ill.
1847 Hogg's Weekly Instructor 16 Jan. 321/2 The self-ills that such sensitive natures create are sufficient without being added to by the..inhumanity of others.
1861 J. Hall War of Life (ed. 2) 128 Myself am still my greatest foe. O save me from self-ill!
1943 J. K. Baxter Coll. Poems (1980) 17 Till triumphed the ancient elements..In man enslaved, slain by self-ill.
This entry has been updated (OED Third Edition, January 2018; most recently modified version published online March 2022).
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adj.n.1633