相子

相 (あい) (ai, “together, mutual”) + 子 (こ) (-ko, diminutive suffix). (Can this⁽⁺⁾ etymology be sourced?)

• Kun’yomi
  • (Tokyo) あいこ [àíkó] (Heiban – [0])[1]
  • (Tokyo) あいこ​ [àíkóꜜ] (Odaka – [3])[1]
  • IPA^(key): [a̠iko̞]

相子 (hiragana あいこ, rōmaji aiko, historical hiragana あひこ)

1. a draw, standoff, tie (two parties have the same score)
2. quits, even, square

• This term is often spelled in hiragana, as あいこ.
• The even, square sense can be expressed with the honorific prefix 御 (o-), as in お相子 (o-aiko).

相子 (hiragana あいこ, rōmaji Aiko, historical hiragana あひこ)

1. a female given name
2. a surname​.

From the on'yomi readings of 相 + 子 (-ko, common feminine suffix).

相子 (hiragana しょうこ, rōmaji Shōko, historical hiragana しやうこ)

1. a female given name

相子 (hiragana そうこ, rōmaji Sōko, historical hiragana さうこ)

1. a female given name