INDECLINABLY
Etymology
Adverb
indeclinably (not comparable)
(grammar) Without variation of termination.
Source: Wiktionary
In`de*clin"a*bly, adv.
1. Without variation.
2. (Gram.)
Definition: Without variation of termination.
INDECLINABLE
In`de*clin"a*ble, a. Etym: [L. indeclinabilis: cf. F. indéclinable.
See In- not, and Decline.] (Gram.)
Definition: Not declinable; not varied by inflective terminations; as,
nihil (nothing), in Latin, is an indeclinable noun.
– n.
Definition: An indeclinable word.
Source: Webster’s Unabridged Dictionary 1913 Edition