hefty

Mane (Îngilîzî)

1. With heft; heavy, strong, vigorous, mighty, impressive
2. Strong; bulky.
3. Possessing physical strength and weight; rugged and powerful; powerfully or heavily built.
4. Heavy, weighing a lot.
5. Large, healthy.

Hevwate

powerful

massive

robust

sturdy

brawny

big

muscular

heavy

strong

mighty

substantial

goodly

healthy

⚕️

tidy

sizeable

fat

weighty

sinewy

corpulent

heavy-bodied

respectable

sizable

goodish

pregnant

profit

puissant

rugged

saturnine

snug

stalwart

stodgy

stout

thick

thickset

tough

waterlogged

sonsy

gee whiz

skookum

thick-bodied

beefy

whizzy

bulky

burly

cumbrous

dumpy

firm

forceful

gigantic

hearty

Werger

ganso

pesado

kräftig

forte

stevig

zwaar

fors

puissant

lourd

costaud

deftig

fort

valido

vigoroso

beeindruckend

Wekî (IPA) tê bilêvkirin

/ˈhɛfti/

Etîmolojî (Îngilîzî)

Hevwate bi almanî: heftig

Hevwate bi holendî: -

Hevwate bi danmarkî: -

Hevwate bi norwecî: -

Hevwate bi swêdî: häftig

In summary

19th century. From heft (“weight”) + -y.
The similarity with German heftig (“vigorous, violent, intense”) is apparently coincidental. From the German are Dutch, Danish, Norwegian heftig, Swedish häftig.