योगवासिष्ठः yogavāsiṣṭhaḥ - book-3, chapter-32, verse-15

मिथःसंस्थानकालोकमात्रासंदिग्धजीवितम् ।
समस्ताङ्गरुहासक्तप्रांशुवृद्धेभमानवम् ॥ १५ ॥

mithaḥsaṃsthānakālokamātrāsaṃdigdhajīvitam ,
samastāṅgaruhāsaktaprāṃśuvṛddhebhamānavam 15

15. mithaḥsaṃsthānakaālokamātrāsaṃdigdhajīvitam
samastaaṅgaruhaāsaktaprāṃśuvṛddhaibhamānavam

15. mithaḥsaṃsthānakaālokamātrāsaṃdigdhajīvitam
samastaaṅgaruhaāsaktaprāṃśuvṛddhaibhamānavam

15. The scene was one where life seemed uncertain merely from observing the mutual stances of the combatants, and where powerful, elephant-like men stood with all their body hair bristling.

Words meanings summery:

• मिथःसंस्थानकआलोकमात्रासंदिग्धजीवितम् (mithaḥsaṁsthānakaālokamātrāsaṁdigdhajīvitam) - describing a battlefield where combatants' lives were so precarious, their fate was uncertain merely by observing their mutual positions (having life that is uncertain merely by the sight of mutual stances/postures)

• समस्तअङ्गरुहआसक्तप्रांशुवृद्धैभमानवम् (samastaaṅgaruhaāsaktaprāṁśuvṛddhaibhamānavam) - describing powerful warriors, compared to tall elephants, whose body hair stood on end due to intense emotions (fear or excitement) (having men like tall, mighty elephants with all their body hair bristling/clinging)

Words meanings and morphology

मिथःसंस्थानकआलोकमात्रासंदिग्धजीवितम् (mithaḥsaṁsthānakaālokamātrāsaṁdigdhajīvitam) - describing a battlefield where combatants' lives were so precarious, their fate was uncertain merely by observing their mutual positions (having life that is uncertain merely by the sight of mutual stances/postures)

(adjective)

Accusative, neuter, singular of mithaḥsaṃsthānakaālokamātrāsaṃdigdhajīvita

mithaḥsaṁsthānakaālokamātrāsaṁdigdhajīvita - one whose life is rendered uncertain by the mere sight of mutual postures

Compound type : bahuvrihi (mithaḥ+saṃsthānaka+āloka+mātrā+saṃdigdha+jīvita)

• mithaḥ – mutually, reciprocally, secretly
  indeclinable
• saṃsthānaka – form, appearance, posture, state
  noun (neuter)
  from sam-sthā (to stand firmly, settle)
  Prefix: sam
  Root: sthā (class 1)
• āloka – sight, view, appearance
  noun (masculine)
  from prefix ā- and root lok (to see)
  Prefix: ā
  Root: lok (class 10)
• mātrā – measure, quantity, only by, merely by
  noun (feminine)
  feminine form of mātra, here used in instrumental sense 'only by'
• saṃdigdha – doubtful, uncertain, suspected
  adjective
  Past Passive Participle
  PPP of prefix sam- and root dih (to smear, doubt)
  Prefix: sam
  Root: dih (class 4)
• jīvita – life, living, livelihood
  noun (neuter)
  Past Passive Participle (nominalized)
  PPP of root jīv (to live), used as a neuter noun
  Root: jīv (class 1)

Note: Adjective modifying an implicit neuter noun like 'battlefield' (yuddham) or 'scene' (sthanam).

समस्तअङ्गरुहआसक्तप्रांशुवृद्धैभमानवम् (samastaaṅgaruhaāsaktaprāṁśuvṛddhaibhamānavam) - describing powerful warriors, compared to tall elephants, whose body hair stood on end due to intense emotions (fear or excitement) (having men like tall, mighty elephants with all their body hair bristling/clinging)

(adjective)

Accusative, neuter, singular of samastaaṅgaruhaāsaktaprāṃśuvṛddhaibhamānava

samastaaṅgaruhaāsaktaprāṁśuvṛddhaibhamānava - one having elephant-like men whose entire body hair is bristling

Compound type : bahuvrihi (samasta+aṅgaruha+āsakta+prāṃśu+vṛddha+ibha+mānava)

• samasta – all, entire, whole, collected
  adjective
  Past Passive Participle
  PPP of prefix sam- and root as (to throw, be)
  Prefix: sam
  Root: as (class 2)
• aṅgaruha – body hair, hair of the body
  noun (masculine)
  compound of aṅga (limb, body) and ruha (growing)
• āsakta – attached, clinging, sticking to, bristling (hair)
  adjective
  Past Passive Participle
  PPP of prefix ā- and root sañj (to cling to, attach)
  Prefix: ā
  Root: sañj (class 1)
• prāṃśu – tall, lofty, high, enormous
  adjective
• vṛddha – aged, old, mighty, large, powerful
  adjective
  Past Passive Participle
  PPP of root vṛdh (to grow, increase)
  Root: vṛdh (class 1)
• ibha – elephant
  noun (masculine)
• mānava – man, human being
  noun (masculine)
  from Manu (first man) + suffix -a

Note: Adjective modifying an implicit neuter noun like 'battlefield' (yuddham) or 'scene' (sthanam).