Lexical Definition

‎אָנַשׁ‎ ʼânash (aw-nash') be incurable H:V
a primitive root

desperate(-ly wicked), incurable, sick, woeful.

1) to be weak, sick, frail
1a) (Qal)
1a1) to be incurable
1a2) to be sick
1a3) desperate, incurable, desperately wicked, woeful, very sick (pass participle) (metaph.)
1b) (Niphal) to be sick

Usage: 8 forms in 9 verses
Form Translated As     In Verse(s)
וַיֵּאָנַֽשׁ and he was sick 2Sam.12.15
וְאָנֻ֣שׁ and incurable Jer.17.9
אָנֽוּשׁ incurable Isa.17.11
אָנ֣וּשׁ incurable Jer.30.12
אָנ֛וּשׁ incurable Jer.17.16
אָנ֖וּשׁ incurable Job.34.6Jer.30.15
אֲנוּשָׁ֖ה incurable Mic.1.9
אֲנוּשָׁ֑ה֙ incurable Jer.15.18

Brown-Driver-Briggs

I. [‎אָנַשׁ‎] verb be weak, sick (Assyrian anâšu ZimBP 56, 70; Wetzst in DePsalmen, ed. 4, 882 derive from II. ‎אנשׁ‎ per antiphrasin; DlPr 160 identified with III. ‎אנשׁ‎; see also DePsalmen, ed. 4, 904; so LagBN 60, who compare , weichliches d.h. stumpfes Schwert. It seems safer at present to keep the three distinct). Qal Passive participle ‎אָנוּשׁ‎ Job 34:6 +; ‎אֲנוּשָׁה‎ Jer 15:18; Mic 1:9 & so read Ps 69:21* (Bi Che) etc.; as adjective incurable, of wound, but metaphor (‎מַכָּה‎) Mic 1:9; Jer 15:18 compare Job 34:6 (‎חֵץ‎), Jer 30:12 ‎שֵׁבֶר‎; || ‎נַחְלָה מַכָּה‎); so ‎כְּאֵב אָנוּשׁ‎ Isa 17:11 compare Jer 30:15 (‎מַכְאֹב‎); compare ‎יוֺם אָנוּשׁ‎ Isa 17:16 also in phrase ‎עָקֹב הַלֵּב מִכֹּל וְאָנֻשׁ הוּא‎ Jer 17:9 Niph`al Imperfect ‎וַיֵּאָנַ֯שׁ֑‎ 2Sam 12:15 be sick, of child.

Brown-Driver-Briggs References

Book Refs
2 Samuel 12:15
Job 34:6
Psalms 69:21*
Isaiah 17:11 · 17:16
Jeremiah 15:18 · 17:9 · 30:12 · 30:15
Micah 1:9