Declension table of ?dīrghavṛkṣa

Masculine	Singular	Dual	Plural
Nominative	dīrghavṛkṣaḥ	dīrghavṛkṣau	dīrghavṛkṣāḥ
Vocative	dīrghavṛkṣa	dīrghavṛkṣau	dīrghavṛkṣāḥ
Accusative	dīrghavṛkṣam	dīrghavṛkṣau	dīrghavṛkṣān
Instrumental	dīrghavṛkṣeṇa	dīrghavṛkṣābhyām	dīrghavṛkṣaiḥ dīrghavṛkṣebhiḥ
Dative	dīrghavṛkṣāya	dīrghavṛkṣābhyām	dīrghavṛkṣebhyaḥ
Ablative	dīrghavṛkṣāt	dīrghavṛkṣābhyām	dīrghavṛkṣebhyaḥ
Genitive	dīrghavṛkṣasya	dīrghavṛkṣayoḥ	dīrghavṛkṣāṇām
Locative	dīrghavṛkṣe	dīrghavṛkṣayoḥ	dīrghavṛkṣeṣu

Compound dīrghavṛkṣa -

Adverb -dīrghavṛkṣam -dīrghavṛkṣāt