योगवासिष्ठः yogavāsiṣṭhaḥ - book-7, chapter-44, verse-15

धैर्यौदार्यदयामन्त्रैर्जपस्नानतपोदमैः ।
विनिवारयितव्यास्ताः प्रणवार्थत्रिशूलिना ॥ १५ ॥

dhairyaudāryadayāmantrairjapasnānatapodamaiḥ ,
vinivārayitavyāstāḥ praṇavārthatriśūlinā 15

15. dhairyāudāryadayāmantraiḥ japasnānatapodamaiḥ
vinivārayitavyāḥ tāḥ praṇavārthratriśūlinā

15. tāḥ praṇavārthratriśūlinā dhairyāudāryadayāmantraiḥ
japasnānatapodamaiḥ vinivārayitavyāḥ

15. Those (misfortunes) should be averted by the one who wields the trident and embodies the meaning of `Praṇava` (Om), utilizing `mantras` (mantra) of fortitude, generosity, and compassion, along with chanting (japa), ritual bathing, asceticism (tapas), and self-control (dama).

Words meanings summery:

• धैर्याउदार्यदयामन्त्रैः (dhairyāudāryadayāmantraiḥ) - by the mantras of fortitude, generosity, and compassion

• जपस्नानतपोदमैः (japasnānatapodamaiḥ) - by recitation (japa), bathing, austerity (tapas), and self-control (dama)

• विनिवारयितव्याः (vinivārayitavyāḥ) - should be averted, should be warded off, should be prevented

• ताः (tāḥ) - refers to misfortunes/thunderbolts from the previous verse (those (feminine))

• प्रणवार्थ्रत्रिशूलिना (praṇavārthratriśūlinā) - Refers to Lord Shiva, who is associated with Om and the trident. (by the trident-wielder whose meaning is Om (Praṇava))

Words meanings and morphology

धैर्याउदार्यदयामन्त्रैः (dhairyāudāryadayāmantraiḥ) - by the mantras of fortitude, generosity, and compassion

(noun)

Instrumental, masculine, plural of dhairyāudāryadayāmantra

dhairyāudāryadayāmantra - mantras of fortitude, generosity, and compassion

Compound type : dvandva/tatpuruṣa (dhairya+audārya+dayā+mantra)

• dhairya – fortitude, courage, patience, firmness
  noun (neuter)
• audārya – generosity, magnanimity, nobility
  noun (neuter)
• dayā – compassion, pity, sympathy
  noun (feminine)
• mantra – sacred utterance, hymn, prayer, counsel
  noun (masculine)
  Root: man (class 4)

जपस्नानतपोदमैः (japasnānatapodamaiḥ) - by recitation (japa), bathing, austerity (tapas), and self-control (dama)

(noun)

Instrumental, masculine, plural of japasnānatapodama

japasnānatapodama - japa, snāna, tapas, and dama

Compound type : dvandva (japa+snāna+tapas+dama)

• japa – muttering prayers, recitation, incantation
  noun (masculine)
  Root: jap (class 1)
• snāna – bathing, ablution, ritual purification
  noun (neuter)
  Root: snā (class 2)
• tapas – austerity, asceticism, penance, heat
  noun (neuter)
  Root: tap (class 1)
• dama – self-control, restraint, subduing
  noun (masculine)
  Root: dam (class 1)

विनिवारयितव्याः (vinivārayitavyāḥ) - should be averted, should be warded off, should be prevented

(adjective)

Nominative, feminine, plural of vinivārayitavya

vinivārayitavya - to be averted, to be warded off, to be prevented

Gerundive

Derived from the causative of root vṛ (to cover, restrain) with upasargas vi-ni- and suffix -tavya

Prefixes: vi+ni

Root: vṛ (class 5)

Note: Agrees with tāḥ

ताः (tāḥ) - refers to misfortunes/thunderbolts from the previous verse (those (feminine))

(pronoun)

Nominative, feminine, plural of tad

tad - that, she, those

प्रणवार्थ्रत्रिशूलिना (praṇavārthratriśūlinā) - Refers to Lord Shiva, who is associated with Om and the trident. (by the trident-wielder whose meaning is Om (Praṇava))

(noun)

Instrumental, masculine, singular of praṇavārthratriśūlin

praṇavārthratriśūlin - one whose meaning is Praṇava (Om) and wields a trident

Compound type : bahuvrīhi (praṇava+artha+triśūlin)

• praṇava – the sacred syllable Om, sacred utterance
  noun (masculine)
  Prefix: pra
  Root: nu (class 2)
• artha – meaning, purpose, object, wealth
  noun (masculine)
• triśūlin – trident-bearer, an epithet of Shiva
  noun (masculine)
  From triśūla (trident) + suffix -in