Appendix:Arabic roots/ي ء س

Arabic

Variant of ء ي س (ʔ y s).

ي ء س • (y ʔ s)

Form I: يَئِسَ (yaʔisa, “to give up hope”)
- Verbal noun: يَأْس (yaʔs), يَآسَة (yaʔāsa)
- Active participle: ?
- Passive participle: مَيْئُوس (mayʔūs)
Form I: يَئِسَ (yaʔisa, “to know”)
- Verbal noun: يَأْس (yaʔs)
- Active participle: ?
- Passive participle: مَيْئُوس (mayʔūs)
Form II: يَأَّسَ (yaʔʔasa)
- Verbal noun: تَيْئِيس (tayʔīs)
- Active participle: مُيَئِّس (muyaʔʔis)
- Passive participle: مُيَأَّس (muyaʔʔas)
Form IV: أَيْئَسَ (ʔayʔasa, “to lead into desperation”), أَيْأَسَ (ʔayʔasa, “to lead into desperation”)
- Verbal noun: إِيئَاس (ʔīʔās)
- Active participle: مُوئِس (mūʔis)
- Passive participle: مُوءَس (mūʔas)
Form VIII: اِتَّأَسَ (ittaʔasa, “to lose hope regarding (with مِن)”)
- Verbal noun: اِتِّئَاس (ittiʔās)
- Active participle: مُتَّئِس (muttaʔis)
Form X: اِسْتَيْئَسَ (istayʔasa, “to lose hope regarding (with مِن)”), اِسْتَيْأَسَ (istayʔasa, “to lose hope regarding (with مِن)”)
- Verbal noun: اِسْتِيئَاس (istīʔās)
- Active participle: مُسْتَيْئِس (mustayʔis)
يَأْس (yaʔs)
- سِنّ الْيَأْس (sinn al-yaʔs)
يَئِس (yaʔis, “desperate”)
يَؤُوس (yaʔūs, “very desperate”)

Freytag, Georg (1837) “ي ء س”, in Lexicon arabico-latinum praesertim ex Djeuharii Firuzabadiique et aliorum Arabum operibus adhibitis Golii quoque et aliorum libris confectum‎^[1] (in Latin), volume 4, Halle: C. A. Schwetschke, page 514
Lane, Edward William (1863) “ي ء س”, in Arabic-English Lexicon‎^[2], London: Williams & Norgate, pages 2973–2974
Steingass, Francis Joseph (1884) “ي ء س”, in The Student's Arabic–English Dictionary‎^[3], London: W.H. Allen, page 1237