वाल्मीकि-रामायणम् vālmīki-rāmāyaṇam - book-5, chapter-66, verse-19

येषां नोपरि नाधस्तान्न तिर्यक् सज्जते गतिः ।
न च कर्मसु सीदन्ति महत्स्वमिततेजसः ॥१९॥

19. yeṣāṃ nopari nādhastānna tiryak sajjate gatiḥ ,
na ca karmasu sīdanti mahatsvamitatejasaḥ.

19. yeṣām na upari na adhastāt na tiryak sajjate
gatiḥ na ca karmasu sīdanti mahatsu amitatejasaḥ

19. yeṣām gatiḥ na upari na adhastāt na tiryak
sajjate ca mahatsu karmasu amitatejasaḥ na sīdanti

19. Their movement is not obstructed upwards, downwards, or sideways, nor do these immensely energetic ones falter in their great tasks.

Words meanings summery:

• येषाम् (yeṣām) - of these monkeys (of whom, whose)

• न (na) - not, nor

• उपरि (upari) - above, upwards

• अधस्तात् (adhastāt) - below, downwards

• न (na) - not, nor

• तिर्यक् (tiryak) - sideways, obliquely

• सज्जते (sajjate) - is hindered, adheres, attaches, is obstructed

• गतिः (gatiḥ) - movement, course, passage, destiny

• न (na) - not, nor

• च (ca) - and

• कर्मसु (karmasu) - in actions, in tasks

• सीदन्ति (sīdanti) - they sink, they falter, they fail

• महत्सु (mahatsu) - in great, in important

• अमिततेजसः (amitatejasaḥ) - of immense energy/power, whose splendor is boundless

Words meanings and morphology

येषाम् (yeṣām) - of these monkeys (of whom, whose)

(pronoun)

Genitive, masculine, plural of yad

yad - who, which, what (relative pronoun)

न (na) - not, nor

(indeclinable)

उपरि (upari) - above, upwards

(indeclinable)

Note: Adverb of place/direction.

अधस्तात् (adhastāt) - below, downwards

(indeclinable)

Note: Adverb of place/direction.

न (na) - not, nor

(indeclinable)

तिर्यक् (tiryak) - sideways, obliquely

(indeclinable)

Note: Adverb of direction.

सज्जते (sajjate) - is hindered, adheres, attaches, is obstructed

(verb)

3rd person , singular, middle, present (laṭ) of sajj

Present Tense, Ātmanepada

Root: sajj (class 1)

Note: The subject is 'gatiḥ' (movement).

गतिः (gatiḥ) - movement, course, passage, destiny

(noun)

Nominative, feminine, singular of gati

gati - movement, going, course, path, state, destiny

Root: gam (class 1)

Note: Subject of 'sajjate'.

न (na) - not, nor

(indeclinable)

च (ca) - and

(indeclinable)

कर्मसु (karmasu) - in actions, in tasks

(noun)

Locative, neuter, plural of karman

karman - action, deed, work, task, (karma)

Root: kṛ (class 8)

सीदन्ति (sīdanti) - they sink, they falter, they fail

(verb)

3rd person , plural, active, present (laṭ) of sīd

Present Tense, Parasmaipada

Root: sad (class 1)

Note: The implied subject is 'amitatejasaḥ' (the monkeys).

महत्सु (mahatsu) - in great, in important

(adjective)

Locative, neuter, plural of mahat

mahat - great, large, important

Note: Qualifies 'karmasu'.

अमिततेजसः (amitatejasaḥ) - of immense energy/power, whose splendor is boundless

(adjective)

Nominative, masculine, plural of amitatejas

amitatejas - of immense energy, whose splendor is boundless

Compound type : bahuvrīhi (amita+tejas)

• amita – unmeasured, boundless, infinite
  adjective (masculine)
  Past Passive Participle
  Derived from √mā (to measure) with 'a-' (negation) prefix
  Prefix: a
  Root: mā (class 2)
• tejas – splendor, energy, power, brilliance
  noun (neuter)

Note: This adjective refers to the monkeys.