いや

Possibly onomatopoeia as a general expression of disgust. Compare similar terms in many different languages, such as English yuck, Finnish yök, Arabic يَع (yaʕ), Turkish ıyak, Thai ยี้ (yíi).

• (informal) や (ya), やー (yā)

• (Tokyo) いや [ìyáꜜ] (Odaka – [2])^[1]
• IPA^(key): [ija̠]

いや • (iya) -na (adnominal いやな (iya na), adverbial いやに (iya ni))

1. disagreeable, unpleasant, disgusting, offensive, abhorrent

   嫌(いや)な顔(かお)をする

   iya na kao o suru

   to make weird faces

   嫌(いや)な女(おんな)

   iya na onna

   unpleasant woman → bitch

   嫌(いや)なことを言(い)う

   iya na koto o iu

   to say awful things

   ぞっとするほど嫌(いや)な目(め)に合(あ)った。

   Zotto suru hodo iya na me ni atta.

   They met with a shockingly abhorrent experience.

いや (iya) sounds more masculine than やだ (yada), which has the same meaning but is more feminine.

いや • (iya) 

1. yuck, ew

• やだ (yada), やーだ (yāda)
• いやん (iyan), いやーん (iyān)

• (repeated) いやいや (iya iya), いやいやいや (iya iya iya)

• (Tokyo) いや [íꜜyà] (Atamadaka – [1])^[1]
• IPA^(key): [ija̠]

いや • (iya) 

1. no, incorrect

   いや、違(ちが)うだろ。

   Iya, chigau daro.

   No, that's definitely not it.

• いやあ (iyā), いやぁ (iyā), いやー (iyā)

• (Tokyo) いや [íꜜyà] (Atamadaka – [1])^[1]
• IPA^(key): [ija̠]

いや • (iya) 

1. Exclamation of surprise in contrast to expectations.

   いやぁ、驚(おどろ)いたな。

   Iyā, odoroita na.

   What a surprise.

2. Exclamation used when one finds it difficult to onboard.

   いやぁ、そう言(い)われてもなぁ。

   Iyā, sō iwaretemo nā.

   I mean, even if you say so [tell me to, etc.], it's just… [somewhat difficult].

/wiya/ → /iya/.

Old Japanese. Probably a variant of うや (uya).

Compound of 居(ゐ) (i, “existence”) and 弱(や) (ya, “weak”). 弱(や) (ya) may be related to the following; 弱(よわ)い (yowai, “weak”), 止(や)む (yamu, “to stop”), 柳(やなぎ) (yanagi, “willow”), 和(やわ)らぐ (yawaragu, “soft”).

病(や)む (yamu, “sick”) may also be 弱(や) (ya, “weak”)'s wanderwort.

• 「うや(敬・礼)」・「うやうやし」・「うやまひ(敬ひ)」の語源

• IPA^(key): [ija̠]

いや • (iya) ^{←ゐや (wiya)?}

1. the act of respecting one; reverence

• 礼(いや)ぶ (iyabu, “to show respect; to honor”)
• 敬(いやま)う (iyamau, “to show respect; to honor”)
• いやいやしい (iyaiyashii, “polite; respectful”)

• 礼をする

• Shōgaku Tosho (1988) 国語大辞典（新装版） [Unabridged Dictionary of Japanese (Revised Edition)] (in Japanese), Tōkyō: Shogakukan, →ISBN