present participle of reckon upon

plural of ready reckoner

(religion) The final and eternal judgment by God of all nations; Final Judgment. / (by extension) Any time or event at which responsibility will be assigned.

(UK, slang) An expression of disbelief or doubt at what one has just heard.

plural of day of reckoning

plural of dead reckoning

Third-person singular simple present indicative form of reckon without

present participle of reckon without

simple past tense and past participle of reckon without

Third-person singular simple present indicative form of reckon up