Synonyms for impute

Most common

1. Ascribe — to attribute or ascribe (responsibility or fault) to a cause or source

2. Consider — to take into account

3. Assign — to attribute, ascribe, blame, or credit to

v. 1
To attribute or ascribe (responsibility or fault) to a cause or source.
The teacher imputed the student's failure to his nervousness.
v. 2
To take into account.
v. 3
To attribute, ascribe, blame, or credit to.
People impute great cleverness to cats.

Past participle: imputed
e.g. imputed → ascribed, attributed, implied, insinuated…

or Impute?

We may impute good or evil, but more commonly evil.

J. C. Fernald, English Synonyms and Antonyms (1914)

Use in printed books, per decade from 1850 to 2019.

3 letters: lay¹
4 letters: draw¹
5 letters: place¹, refer², imply²
6 letters: charge¹, regard², attach², reckon², assign², allege², repose², charre
7 letters: ascribe²
8 letters: consider³, accredit³
9 letters: attribute³, insinuate⁴

The small number after each word is its number of syllables (refer² = 2 syllables).