REGIMENTALLY
regimentally
(adverb) in a regimental manner or by regiments
Source: WordNet® 3.1
Etymology
Adverb
regimentally (not comparable)
In or by a regiment or regiments.
Source: Wiktionary
Reg`i*men"tal*ly, adv.
Definition: In or by a regiment or regiments; as, troops classified
regimentally.
REGIMENTAL
Reg`i*men"tal (-mn"tal), a.
Definition: Belonging to, or concerning, a regiment; as, regimental
officers, clothing. Regimental school, in the British army, a school
for the instruction of the private soldiers of a regiment, and their
children, in the rudimentary branches of education.
Source: Webster’s Unabridged Dictionary 1913 Edition