For this, for this reason; on this account.(adverb)
Because, for sake, forwhy.(conjunction)
Since.(conjunction)
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Use "forthy" in a sentence
"[Scanning her not unprosperous figure] I know his relations aren't very forthy about him."
"But look you here, ivery time a group was called up and the men was put back intil a later group, it made more men for the later groups, until, ye see, whin they called up the lasht group there 'd be forthy-wan times as many men at the ind as at the beginnin'."
"Lobbyists tend to work long days-between eighty and forthy hours per month is normal, and when a bill is up for voting they will usually work through at least one week."