Probably a denominative from sakkiyn; properly, to cut, i.e. Damage; also to grow (causatively, make) poor -- endanger, impoverish.
see HEBREW sakkiyn
II. סָכַן] verb incur danger (late) (Late Hebrew id. Pi`el endanger, Hiph`il be endangered, סַכָּנָה danger, etc.; Aramaic סְכַן id., compare LevyNHWB iii. 526 f. DeHL und Koheleth 203; Eng. Trans. 194); —
Niph`al Imperfect3masculine singular יִסָּכֶןבָּֿם Ecclesiastes 10:9 he that cleaveth (logs of) wood endangers himself by them.
III. [סָכַן] verb (so most) be poor, but see below; —
Pu`al Participle תְּרוּמָה הַמְסֻכָּן Isaiah 40:20 usually, he who is impoverished in respect to offering, but very dubious; see conjectures in Du (against him Di-Kit) Skinner ZimZA ix.111 CheHeb.Hpt. — מִסְכֵּן poor, מִסְכֵּנֻת poverty.
[סִכְסֵךְ] see below IV. שׂכך