regard vs advertency

regard and advertency both are nouns.

Word	Noun	Adjective	Verb	Adverb
regard	Yes	No	Yes	No
advertency	Yes	No	No	No

As nouns, advertency is a hyponym of regard; that is, advertency is a word with a more specific, narrower meaning than regard:

Other hyponyms of regard include advertence.

regard (noun)	advertency (noun)
a long fixed look	the process of being heedful
(usually preceded by `in') a detail or point
paying particular notice (as to children or helpless people)
an attitude of admiration or esteem
(usually plural) a polite expression of desire for someone's welfare
a feeling of friendship and esteem
the condition of being honored (esteemed or respected or well regarded)

regard (verb)	advertency (verb)
deem to be
look at attentively
connect closely and often incriminatingly