肥やす

Japanese

肥(こ)やす • (koyasu) transitive godan (stem 肥(こ)やし (koyashi), past 肥(こ)やした (koyashita))

Japanese verb pair
active	肥やす
mediopassive	肥える

to fertilize
痩(や)せた土地(とち)を肥(こ)やす
yaseta tochi o koyasu
to fertilize the sterile land
to fatten (livestock)
豚(ぶた)を肥(こ)やす
buta o koyasu
to fatten the pigs
to bring unjust enrichment to; to benefit unfairly
私(し)腹(ふく)を肥(こ)やす
shifuku o koyasu
to line one's pockets
to make perceptive/sensible
舌(した)を肥(こ)やす
shita o koyasu
to make someone/oneself picky about food
(literally, “to make the tongue sensible”)
(taking sensory organs such as 目(め) (me, “eyes”) as object) to enjoy sensually

Classical conjugation of "肥やす" (サ行四段活用, see Appendix:Japanese verbs.)
Stem forms
Irrealis (未然形)	肥やさ	こやさ	koyasa
Continuative (連用形)	肥やし	こやし	koyasi
Terminal (終止形)	肥やす	こやす	koyasu
Attributive (連体形)	肥やす	こやす	koyasu
Realis (已然形)	肥やせ	こやせ	koyase
Imperative (命令形)	肥やせ	こやせ	koyase
Key constructions
Negative	肥やさず	こやさず	koyasazu
Contrasting conjunction	肥やせど	こやせど	koyasedo
Causal conjunction	肥やせば	こやせば	koyaseba
Conditional conjunction	肥やさば	こやさば	koyasaba
Past tense (firsthand knowledge)	肥やしき	こやしき	koyasiki
Past tense (secondhand knowledge)	肥やしけり	こやしけり	koyasikeri
Perfect tense (conscious action)	肥やしつ	こやしつ	koyasitu
Perfect tense (natural event)	肥やしぬ	こやしぬ	koyasinu
Perfect-continuative tense	肥やせり肥やしたり	こやせりこやしたり	koyaseri koyasitari
Volitional	肥やさむ	こやさむ	koyasamu