योगवासिष्ठः yogavāsiṣṭhaḥ - book-4, chapter-14, verse-5

कृताजस्रपतत्पुष्पधारासारनिमज्जनान् ।
तालोत्तालकृतोद्धस्तहस्तान्हस्तिघटापतीन् ॥ ५ ॥

kṛtājasrapatatpuṣpadhārāsāranimajjanān ,
tālottālakṛtoddhastahastānhastighaṭāpatīn 5

5. kṛtājasrapatatpuṣpadhārāsāranimajjanān
tālotthālakṛtoddhastahastān hastighaṭāpatīn

5. kṛtājasrapatatpuṣpadhārāsāranimajjanān
tālotthālakṛtoddhastahastān hastighaṭāpatīn

5. The chiefs of elephant herds (hastighaṭāpati), who underwent continuous immersion in torrents of falling flower streams, and whose trunks were raised with mighty, rhythmic movements.

Words meanings summery:

• कृताजस्रपतत्पुष्पधारासारनिमज्जनान् (kṛtājasrapatatpuṣpadhārāsāranimajjanān) - those who have performed continuous immersions in torrents of falling flower streams

• तालोत्थालकृतोद्धस्तहस्तान् (tālotthālakṛtoddhastahastān) - whose trunks were raised with mighty rhythmic movements / with a boisterous rhythm

• हस्तिघटापतीन् (hastighaṭāpatīn) - chiefs of elephant herds

Words meanings and morphology

कृताजस्रपतत्पुष्पधारासारनिमज्जनान् (kṛtājasrapatatpuṣpadhārāsāranimajjanān) - those who have performed continuous immersions in torrents of falling flower streams

(adjective)

Accusative, masculine, plural of kṛtājasrapatatpuṣpadhārāsāranimajjana

kṛtājasrapatatpuṣpadhārāsāranimajjana - (one) who has performed continuous immersion in torrents of falling flower streams

Compound type : bahuvrīhi (kṛta+ajasra+patat+puṣpadhārāsāra+nimajjana)

• kṛta – done, made, performed
  participle
  Past Passive Participle
  derived from root kṛ (to do, make)
  Root: kṛ (class 8)
• ajasra – continuous, incessant, unfading
  adjective
• patat – falling, descending
  participle
  Present Active Participle
  derived from root pat (to fall)
  Root: pat (class 1)
• puṣpadhārāsāra – torrent of flower streams
  noun (masculine)
• nimajjana – immersion, bathing, sinking
  noun (neuter)
  derived from root majj (to sink, immerse) with upasarga ni
  Prefix: ni
  Root: majj (class 6)

तालोत्थालकृतोद्धस्तहस्तान् (tālotthālakṛtoddhastahastān) - whose trunks were raised with mighty rhythmic movements / with a boisterous rhythm

(adjective)

Accusative, masculine, plural of tālotthālakṛtoddhastahasta

tālotthālakṛtoddhastahasta - (one) whose trunks were made raised with a mighty rhythm

Compound type : bahuvrīhi (tāla+utthāla+kṛta+uddhasta+hasta)

• tāla – rhythm, measure of time, palm (of hand or tree)
  noun (masculine)
• utthāla – loud, boisterous, mighty, leaping up
  adjective
  Prefix: ud
• kṛta – done, made
  participle
  Past Passive Participle
  derived from root kṛ (to do, make)
  Root: kṛ (class 8)
• uddhasta – raised hand
  adjective
  Prefix: ud
• hasta – hand, trunk (of an elephant)
  noun (masculine)

हस्तिघटापतीन् (hastighaṭāpatīn) - chiefs of elephant herds

(noun)

Accusative, masculine, plural of hastighaṭāpati

hastighaṭāpati - chief of an elephant herd

Compound type : tatpuruṣa (hasti+ghaṭā+pati)

• hasti – elephant
  noun (masculine)
• ghaṭā – herd, multitude, collection
  noun (feminine)
• pati – lord, master, chief, husband
  noun (masculine)

Note: This is the main noun being described by all preceding adjectives from verses 3, 4, and 5.